<SUBMISSION>
<ACCESSION-NUMBER>0001125282-06-007679
<TYPE>424B7
<PUBLIC-DOCUMENT-COUNT>1
<FILING-DATE>20061208
<DATE-OF-FILING-DATE-CHANGE>20061208
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>BRANDYWINE OPERATING PARTNERSHIP LP /PA
<CIK>0001060386
<ASSIGNED-SIC>6798
<IRS-NUMBER>232862640
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>424B7
<ACT>33
<FILE-NUMBER>333-138513-01
<FILM-NUMBER>061265306
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>14 CAMPUS BOULEVARD
<STREET2>610-325-5600
<CITY>NEWTOWN SQUARE
<STATE>PA
<ZIP>19073
<PHONE>6103255600
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>BRANDYWINE OPERATING PARTNERSHIP LP
<STREET2>16 CAMPUS BOULEVARD
<CITY>NEWTRON SQUARE
<STATE>PA
<ZIP>19073
</MAIL-ADDRESS>
</FILER>
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>BRANDYWINE REALTY TRUST
<CIK>0000790816
<ASSIGNED-SIC>6798
<IRS-NUMBER>232413352
<STATE-OF-INCORPORATION>MD
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>424B7
<ACT>33
<FILE-NUMBER>333-138513
<FILM-NUMBER>061265305
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>14 CAMPUS BLVD
<STREET2>STE 100
<CITY>NEWTOWN SQUARE
<STATE>PA
<ZIP>19073
<PHONE>6103255600
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>TWO GREENTREE CENTRE
<STREET2>SUITE 100
<CITY>MARLTON
<STATE>NJ
<ZIP>08053
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>LINPRO SPECIFIED PROPERTIES
<DATE-CHANGED>19920703
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>424B7
<SEQUENCE>1
<FILENAME>b416031_424b7.htm
<DESCRIPTION>FORM 424B7
<TEXT>
<html>
<head><title>
Prepared and filed by St Ives Financial
</title>
</head>
<body bgcolor="#FFFFFF">
<page>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td width="50%"><font size="2" face="serif"><b>Prospectus Supplement No.
          1<br>
(to Prospectus Dated November 8, 2006)</b></font></td>
    <td align="right"><font size="2" face="serif"><b>Filed pursuant to Rule 424(b)(7)<br>
    </b></font><font size="2" face="serif"><b>Registration No. 333-138513</b></font></td>
  </tr>
</table>

<p align="left"><font size="2" face="serif"><b></b></font></p>
<p align="center"><b><font face="serif" size="4">$345,000,000<br>
</font></b><b><font face="serif" size="4">Brandywine Operating Partnership, L.P.<br>
</font></b><b><font face="serif" size="4">3.875% Exchangeable Guaranteed Notes due 2026<br>
</font></b><b><font face="serif" size="4">fully and unconditionally guaranteed by<br>
</font></b><b><font face="serif" size="4">Brandywine Realty Trust</font></b></p>
<p align="left"><font size="2" face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This
    prospectus supplement no. 1 supplements and amends the prospectus dated November
    8, 2006 relating to the sale from time to time by the selling securityholders
    named in the prospectus and in this prospectus supplement of up to $345,000,000
    aggregate principal amount of 3.875% Exchangeable Guaranteed Notes due 2026
    of Brandywine Operating Partnership, L.P., and the common shares of beneficial
    interest
of Brandywine Realty Trust, if any, issuable upon exchange of the notes.</font></p>
<p align="left"><font size="2" face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This prospectus supplement should be read in conjunction with and accompanied by, and is qualified by reference to, the prospectus, except to the extent that the information in this prospectus supplement supersedes any information contained in the prospectus.</font></p>
<p align="left"><font size="2" face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Common shares of beneficial interest of Brandywine Realty Trust are listed on the New York Stock Exchange under the symbol &#8220;BDN&#8221;.  On December 6, 2006, the last reported sale price of common shares of beneficial interest of Brandywine Realty Trust on the New York Stock Exchange was $34.99 per share.</font></p>
<p align="center"><font size="2" face="serif"><b>________________________<br>&nbsp;</b></font></p>
<p align="left"><font size="2" face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<b>Investing in the notes involves risks. See &#8216;&#8216;Risk Factors&#8217;&#8217; beginning on page 7 of the prospectus, as well as the risk factors that are incorporated by reference in the prospectus.</b></font></p>
<p align="center"><font size="2" face="serif"><b>________________________</b></font></p>
<p align="left"><font size="2" face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<b>NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED IF THIS PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.</b></font></p>
<p align="center"><font size="2" face="serif">The date of this prospectus supplement is December 8, 2006</font></p>
<p align="center">&nbsp;</p>
<hr noshade align="center" width="100%" size="2">
<div style="page-break-before:always"></div>
<page>
<a name="p?"></a>
<p align="center"><font size="2" face="serif"><b>SELLING SECURITYHOLDERS</b></font></p>
<p align="left"><font size="2" face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The information appearing in the table below supplements and amends the information with respect to such selling securityholders in the table appearing under the heading &#8220;Selling Securityholders&#8221; in the prospectus.  The information is based solely on information provided to us by or on behalf of the selling securityholders on or prior to December 6, 2006.  The number of Brandywine common shares issuable upon exchange of the notes shown in the table below represents the maximum number of Brandywine common shares issuable upon exchange of the notes assuming exchange of the full amount of notes held by each holder at the initial exchange rate of 25.4065 Brandywine common shares
per $1,000 principal amounts of the notes.  This exchange rate is subject to adjustments in certain circumstances.  Because the selling securityholders may offer all or some portion of the notes or Brandywine common shares issuable upon exchange of the notes, we have assumed for purposes of the table below that the named selling securityholders will sell all of the notes or exchange all of the notes and sell all of the Brandywine common shares issuable upon exchange of the notes offered pursuant to this prospectus supplement and the prospectus.  In addition, the selling securityholders identified below may have sold, transferred or otherwise disposed of all or a portion of their notes since the date on which they provided the information regarding their notes in transactions exempt from
the registration requirements of the Securities Act.  Information about the selling securityholders may change over time.  Any changed information given to us by the selling securityholders will be set forth in a prospectus supplement if and when necessary or, if appropriate, a post-effective amendment to the registration statement of which this prospectus supplement and the prospectus is a part.  Because the selling securityholders may offer all or some of their notes or the underlying Brandywine common shares from time to time, we cannot estimate the amount of notes or underlying Brandywine common shares that will be held by the selling securityholders upon the termination of any particular offering. See &#8216;&#8216;Plan of Distribution&#8217;&#8217; in the prospectus for further
information.</font></p>
<table width="100%" cellspacing="0" cellpadding="0" align="center" border="0">
<tr valign="top" bgcolor="#FFFFFF">
<td align="center" valign="bottom"><font size="2" face="serif"><b><font face="serif" size="1">Name *</font></b></font></td>
<td align="left" width="2%">&nbsp;</td>
<td width="10%" align="center"><font size="2" face="serif"><b><font face="serif" size="1">Aggregate
        Principal<br>
      Amount of<br>
      Notes<br>
      Beneficially Owned That<br>
      May be Sold ($)</font></b></font></td>
<td width="2%" align="left">&nbsp;</td>
<td width="10%" align="center" valign="bottom"><font size="2" face="serif"><b><font face="serif" size="1">Percentage
        of<br>
      Notes<br>
      Outstanding **</font></b></font></td>
<td width="2%" align="left">&nbsp;</td>
<td width="11%" align="center" valign="bottom"><font size="2" face="serif"><b><font face="serif" size="1">Number of<br>
Brandywine<br>
Common Shares<br>
That May be<br>
Sold ***</font></b></font></td>
<td width="2%" align="left">&nbsp;</td>
<td width="13%" align="center"><font size="2" face="serif"><b><font face="serif" size="1">Other Brandywine Common Shares Beneficially Owned Before the Offering<br>
and Assumed to be<br>
Owned Following<br>
the Offering</font></b></font></td>
<td width="2%" align="left">&nbsp;</td>
<td width="12%" align="center" valign="bottom"><font size="2" face="serif"><b><font face="serif" size="1">Percentage
        of Outstanding<br>
      Common Shares Beneficially<br>
      Owned Following<br>
      the Offering
        ****</font></b></font></td>
<td width="2%" align="left">&nbsp;</td> </tr>
<tr valign="top" bgcolor="#FFFFFF">
  <td align="left"><hr noshade size="1">
    </td>
  <td align="left">&nbsp;</td>
  <td align="right"><hr noshade size="1">
    </td>
  <td align="left">&nbsp;</td>
  <td align="right"><hr noshade size="1">
    </td>
  <td align="left">&nbsp;</td>
  <td align="right"><hr noshade size="1">
    </td>
  <td align="left">&nbsp;</td>
  <td align="right"><hr noshade size="1">
    </td>
  <td align="left">&nbsp;</td>
  <td align="right"><hr noshade size="1">
    </td>
  <td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">Acuity Master Fund Ltd.</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">2,300,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">16,667</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">Bear, Stearns &amp; Co. Inc. (1)
    (2)</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">4,500,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">1.30</font></td>
<td align="left"><font size="2" face="serif">%</font></td>
<td align="right"><font size="2" face="serif">32,609</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">GLG Market Neutral Fund</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">10,000,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">2.90</font></td>
<td align="left"><font size="2" face="serif">%</font></td>
<td align="right"><font size="2" face="serif">72,464</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">Highbridge International LLC</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">25,000,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">7.25</font></td>
<td align="left"><font size="2" face="serif">%</font></td>
<td align="right"><font size="2" face="serif">181,159</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">Lehman Brothers Inc. (1)</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">15,000,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">4.35</font></td>
<td align="left"><font size="2" face="serif">%</font></td>
<td align="right"><font size="2" face="serif">108,696</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">LDG Limited (3)</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">212,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">1,536</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">Lyxor/Acuity Fund Ltd. (4)</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">2,700,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">19,565</font></td>
<td align="left">&nbsp;</td>
<td align="left"><font size="2" face="serif">&nbsp;</font></td>
<td align="left">&nbsp;</td>
<td align="left"><font size="2" face="serif">&nbsp;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">Magnetar Capital Master Fund, Ltd. (5)</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">10,000,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">2.90</font></td>
<td align="left"><font size="2" face="serif">%</font></td>
<td align="right"><font size="2" face="serif">72,464</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">MSS Convertible Arbitrage I Fund (3)</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">67,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">486</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">PNC Equity Securities LLC</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">2,000,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">14,493</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">SuttonBrook Capital Portfolio LP</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">15,000,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">4.35</font></td>
<td align="left"><font size="2" face="serif">%</font></td>
<td align="right"><font size="2" face="serif">108,696</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">Royal Bank of Canada</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">9,500,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">2.75</font></td>
<td align="left"><font size="2" face="serif">%</font></td>
<td align="right"><font size="2" face="serif">68,841</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">TQA Master Fund Ltd. (3)</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">1,584,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">11,478</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">TQA Master Plus Fund Ltd. (3)</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">753,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">5,457</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="top" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">UBS Securities LLC</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">2,000,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">14,493</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">10,021</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
<tr valign="bottom" bgcolor="#FFFFFF">
<td align="left"><font size="2" face="serif">Zurich Institutional Benchmarks <br>
  &nbsp;&nbsp;&nbsp;&nbsp;Master Fund, Ltd. (3)</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">384,000</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">2,783</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
<td align="right"><font size="2" face="serif">&#151;</font></td>
<td align="left">&nbsp;</td>
</tr>
</table>
<p align="center"><font size="2" face="serif"></font></p>
<hr noshade align="center" width="100%" size="2">
<div style="page-break-before:always"></div>
<page> <a name="p?"></a>
<p align="left"><font size="2" face="serif">___________________</font></p>
<table width="100%" cellspacing="0" cellpadding="0" border="0">
<tr valign="top">
<td width="5%"><font size="2" face="serif">* </font></td>
<td align="left">
<font size="2" face="serif"> See &#8216;&#8216;Plan of Distribution&#8217;&#8217; in the prospectus.</font></td>
</tr>
<tr valign="top">
  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
</tr>
<tr valign="top">
<td><font size="2" face="serif">** </font></td>
<td align="left">
<font size="2" face="serif"> Unless otherwise noted, none of these selling securityholders beneficially own 1% or more of the outstanding notes.</font></td>
</tr>
<tr valign="top">
  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
</tr>
<tr valign="top">
<td><font size="2" face="serif">*** </font></td>
<td align="left">
<font size="2" face="serif"> Represents an estimate of the maximum number of Brandywine common shares issuable upon exchange of all of the holder&#8217;s notes at the initial exchange rate of 25.4065 Brandywine common shares per $1,000 principal amount of the notes, or an estimated aggregate maximum of 2,500,000 Brandywine common shares issuable to all holders of the notes.  This exchange rate is subject to adjustment as described under &#8220;Description of Notes &#150; Exchange Rights&#8221; in the prospectus.  The number of Brandywine common shares issuable upon exchange of the notes may change in the future as a result of adjustments to the exchange rate and the price of the Brandywine common shares at the time of the exchange of the notes.</font></td>
</tr>
<tr valign="top">
  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
</tr>
<tr valign="top">
<td><font size="2" face="serif">**** </font></td>
<td align="left">
<font size="2" face="serif"> Calculated based on Rule 13d-3 of the Exchange Act,
using 88,299,917 Brandywine common shares outstanding as of December 6, 2006.
In calculating these percentages for each holder of notes, we also treated as
outstanding
the
estimated number of Brandywine common shares issuable upon exchange of that holder&#8217;s
notes at the initial exchange rate. However, we did not assume the exchange of
any other holder&#8217;s notes.  Based on the 88,299,917 Brandywine
common shares outstanding as of December 6, 2006, unless otherwise noted, none
of these selling securityholders would beneficially own 1% or more of the outstanding
Brandywine common shares following the sale of securities in the offering.</font></td>
</tr>
<tr valign="top">
  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
</tr>
<tr valign="top">
<td><font size="2" face="serif">(1)</font></td>
<td align="left">
<font size="2" face="serif"> In October 2005, the selling securityholder acted as an initial purchaser of the securities offered by this prospectus supplement and the prospectus in a private placement.  The selling securityholder received customary fees and commissions for this transaction.</font></td>
</tr>
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  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
</tr>
<tr valign="top">
<td><font size="2" face="serif">(2)</font></td>
<td align="left">
<font size="2" face="serif"> The selling securityholder and its affiliates have performed various financial advisory and investment banking services for us from time to time.  The selling securityholder has received customary fees and commissions for these transactions.  The selling securityholder is presently a lender under our revolving credit facility.  The selling securityholder has reported a short position in Brandywine common shares of 49,519 as of November 10, 2006. </font></td>
</tr>
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  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
</tr>
<tr valign="top">
<td><font size="2" face="serif">(3)</font></td>
<td align="left">
<font size="2" face="serif"> TQA Investors LLC has sole investment power and shared voting power.  Its members are: Robert Butman, John Idone, George Esser, Paul Bucci, Bartholomew Tesoriero, and DJ Langis.</font></td>
</tr>
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  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
</tr>
<tr valign="top">
<td><font size="2" face="serif">(4)</font></td>
<td align="left">
<font size="2" face="serif"> The information with respect to this selling securityholder in this prospectus supplement supersedes the information provided with respect to this selling securityholder in the prospectus.</font></td>
</tr>
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  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
</tr>
<tr valign="top">
<td><font size="2" face="serif">(5)</font></td>
<td align="left">
<font size="2" face="serif"> Magnetar Financial LLC is the investment advisor of Magnetar Capital Master Fund, Ltd. (&#8220;Magnetar Master Fund&#8221;) and consequently has voting and investment discretion over securities held by Magnetar Master Fund.  Magnetar Financial LLC disclaims beneficial ownership of the securities held by Magnetar Master Fund.  Alec Litowitz disclaims beneficial ownership of the securities held by Magnetar Master Fund.  Alec Litowitz has voting control over Supernova Management LLC, the general partner of Magnetar Capital Partners, LP, the sole managing member of Magnetar Financial LLC.  As a result, Mr. Litowitz may be considered the beneficial owner of any securities deemed to be beneficially owned by Magnetar Financial LLC.  Mr. Litowitz disclaims beneficial
ownership of these securities.</font></td>
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