<SUBMISSION>
<ACCESSION-NUMBER>0001125282-06-008072
<TYPE>424B7
<PUBLIC-DOCUMENT-COUNT>1
<FILING-DATE>20061222
<DATE-OF-FILING-DATE-CHANGE>20061221
<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>061294544
</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>
<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>061294545
</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>
<DOCUMENT>
<TYPE>424B7
<SEQUENCE>1
<FILENAME>b416572_424b7.htm
<DESCRIPTION>FORM 424(B)(7)
<TEXT>
<html>
<head><title>
Prepared and filed by St Ives Financial
</title>
</head>
<body bgcolor="#FFFFFF">
<page>
<table width="100%" cellspacing="0" cellpadding="0" border="0">
<tr valign="top">
<td align="left" width="50%"><font size="2" face="serif"><b>Prospectus Supplement No. 2</b></font></td>
<td align="right"><font size="2" face="serif"><b>Filed pursuant to Rule 424(b)(7)</b></font></td>
</tr>
<tr valign="top">
<td align="left"><font size="2" face="serif"><b>(to Prospectus Dated November 8, 2006, as</b></font></td>
<td align="right"><font size="2" face="serif"><b>Registration No. 333-138513</b></font></td>
</tr>
<tr valign="top">
<td align="left"><font size="2" face="serif"><b>Supplemented by Prospectus Supplement </b></font></td>
<td align="left"><font size="2" face="serif">&nbsp;</font></td>
</tr>
<tr valign="top">
<td align="left"><font size="2" face="serif"><b>No. 1 dated December 8, 2006)</b></font></td>
<td align="left"><font size="2" face="serif">&nbsp;</font></td>
</tr>
</table>
<p align="center"><b><font face="serif" size="4">$345,000,000<br>Brandywine Operating Partnership, L.P.<br>3.875% Exchangeable Guaranteed Notes due 2026<br>fully and unconditionally guaranteed by<br>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. 2 supplements and amends the prospectus dated November 8, 2006 (as amended by prospectus supplement no. 1 dated December 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 Senior 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 20, 2006,
   the last reported sale price of common shares of beneficial interest of Brandywine

  Realty Trust on the New York Stock Exchange was $33.49 per share.</font></p>
<hr width="200" size="1" noshade>
<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>
<hr width="200" size="1" noshade>
<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 22, 2006</font></p>
<hr noshade align="center" width="100%" size="2">
<div style="page-break-before:always"></div>
<page>
<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 21, 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="bottom" bgcolor="#FFFFFF">
    <td align="left" width="401"><font size="2" face="serif"><b><u><font face="serif" size="1">Name
      *</font></u></b></font></td>
    <td align="center" colspan="2"><font size="2" face="serif"><b><font face="serif" size="1">Aggregate
      <br>
      Principal <br>
      Amount of <br>
      Notes <br>
      Beneficially<br>
      Owned That<br>
      <u>May be Sold ($)</u></font></b></font></td>
    <td width="11" align="left">&nbsp;</td>
    <td align="center" colspan="2"><font size="2" face="serif"><b><font face="serif" size="1">Percentage
      of <br>
      Notes <br>
      <u>Outstanding **</u></font></b></font></td>
    <td width="5" align="right">&nbsp;</td>
    <td align="center" colspan="2"><font size="2" face="serif"><b><font face="serif" size="1">Number
      of <br>
      Brandywine <br>
      Common Shares<br>
      That May be<br>
      <u>Sold ***</u></font></b></font></td>
    <td width="5" align="right">&nbsp;</td>
    <td align="center" colspan="2"><font size="2" face="serif"><b><font face="serif" size="1">Other
      Brandywine<br>
      Common Shares<br>
      Beneficially Owned<br>
      Before the Offering<br>
      and Assumed to be<br>
      Owned Following<br>
      <u>the Offering</u></font></b></font></td>
    <td width="9" align="right">&nbsp;</td>
    <td align="center" colspan="2"><font size="2" face="serif"><b><font face="serif" size="1">Percentage
      of<br>
      Outstanding<br>
      Common Shares<br>
      Beneficially<br>
      Owned Following<br>
      <u>the Offering ****</u></font></b></font></td>
  </tr>
  <tr valign="bottom" bgcolor="#ffffff">
    <td align="left" width="501"><font size="2" face="serif">ADI Alternative Investments</font></td>
    <td align="right" width="61"><font size="2" face="serif">5,500,000</font></td>
    <td align="right" width="17">&nbsp;</td>
    <td align="left" width="11">&nbsp;</td>
    <td align="right" width="57"><font size="2" face="serif">1.59</font></td>
    <td align="left" width="51"><font size="2" face="serif">%</font></td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="54"><font size="2" face="serif">39,855</font></td>
    <td align="right" width="29">&nbsp;</td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="70"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="54">&nbsp;</td>
    <td align="right" width="9">&nbsp;</td>
    <td align="right" width="64"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="89">&nbsp;</td>
  </tr>
  <tr valign="bottom" bgcolor="#FFFFFF">
    <td align="left" width="401"><font size="2" face="serif">Casam ADI CB Artibtrage</font></td>
    <td align="right" width="61"><font size="2" face="serif">3,500,000</font></td>
    <td align="right" width="17">&nbsp;</td>
    <td align="left" width="11">&nbsp;</td>
    <td align="right" width="57"><font size="2" face="serif">1.01</font></td>
    <td align="left" width="51"><font size="2" face="serif">%</font></td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="54"><font size="2" face="serif">25,362</font></td>
    <td align="right">&nbsp;</td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="70"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="54">&nbsp;</td>
    <td align="right" width="9">&nbsp;</td>
    <td align="right" width="64"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="89">&nbsp;</td>
  </tr>
  <tr valign="bottom" bgcolor="#ffffff">
    <td align="left" width="401"><font size="2" face="serif">Citigroup Global
      Markets Inc.</font></td>
    <td align="right" width="61"><font size="2" face="serif">2,000,000</font></td>
    <td align="right" width="17">&nbsp;</td>
    <td align="left" width="11">&nbsp;</td>
    <td align="right" width="57"><font size="2" face="serif">&#151;</font></td>
    <td align="left" width="51"><font size="2" face="serif">&nbsp;</font></td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="54"><font size="2" face="serif">14,493</font></td>
    <td align="right">&nbsp;</td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="70"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="54">&nbsp;</td>
    <td align="right" width="9">&nbsp;</td>
    <td align="right" width="64"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="89">&nbsp;</td>
  </tr>
  <tr valign="bottom" bgcolor="#FFFFFF">
    <td align="left" width="401"><font size="2" face="serif">Kallista Master Fund
      Limited</font></td>
    <td align="right" width="61"><font size="2" face="serif">7,500,000</font></td>
    <td align="right" width="17">&nbsp;</td>
    <td align="left" width="11">&nbsp;</td>
    <td align="right" width="57"><font size="2" face="serif">2.17</font></td>
    <td align="left" width="51"><font size="2" face="serif">%</font></td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="54"><font size="2" face="serif">54,348</font></td>
    <td align="right">&nbsp;</td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="70"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="54">&nbsp;</td>
    <td align="right" width="9">&nbsp;</td>
    <td align="right" width="64"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="89">&nbsp;</td>
  </tr>
  <tr valign="bottom" bgcolor="#FFFFFF">
    <td align="left" width="401"><font size="2" face="serif">KBC Financial Products
      USA Inc. (1)</font></td>
    <td align="right" width="61"><font face="serif" size="2">11,000,000</font></td>
    <td align="right" width="17">&nbsp;</td>
    <td align="left" width="11">&nbsp;</td>
    <td align="right" width="57"><font face="serif" size="2">3.19</font></td>
    <td align="left" width="51"><font size="2" face="serif">%</font></td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="54"><font face="serif" size="2">79,710</font></td>
    <td align="right">&nbsp;</td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="70"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="54">&nbsp;</td>
    <td align="right" width="9">&nbsp;</td>
    <td align="right" width="64"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="89">&nbsp;</td>
  </tr>
  <tr valign="bottom" bgcolor="#ffffff">
    <td align="left" width="401"><font size="2" face="serif">Old Lane HMA Master
      Fund LP</font></td>
    <td align="right" width="61"><font size="2" face="serif">3,330,000</font></td>
    <td align="right" width="17">&nbsp;</td>
    <td align="left" width="11">&nbsp;</td>
    <td align="right" width="57"><font size="2" face="serif">&#151;</font></td>
    <td align="left" width="51"><font size="2" face="serif">&nbsp;</font></td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="54"><font size="2" face="serif">24,130</font></td>
    <td align="right">&nbsp;</td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="70"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="54">&nbsp;</td>
    <td align="right" width="9">&nbsp;</td>
    <td align="right" width="64"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="89">&nbsp;</td>
  </tr>
  <tr valign="bottom" bgcolor="#FFFFFF">
    <td align="left" width="401"><font size="2" face="serif">Old Lane US Master
      Fund LP</font></td>
    <td align="right" width="61"><font size="2" face="serif">5,064,000</font></td>
    <td align="right" width="17">&nbsp;</td>
    <td align="left" width="11">&nbsp;</td>
    <td align="right" width="57"><font size="2" face="serif">1.47</font></td>
    <td align="left" width="51"><font size="2" face="serif">%</font></td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="54"><font size="2" face="serif">36,696</font></td>
    <td align="right">&nbsp;</td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="70"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="54">&nbsp;</td>
    <td align="right" width="9">&nbsp;</td>
    <td align="right" width="64"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="89">&nbsp;</td>
  </tr>
  <tr valign="bottom" bgcolor="#FFFFFF">
    <td align="left" width="401"><font size="2" face="serif">Sunrise Partners
      Limited Partnership</font></td>
    <td align="right" width="61"><font size="2" face="serif">7,000,000</font></td>
    <td align="right" width="17">&nbsp;</td>
    <td align="left" width="11">&nbsp;</td>
    <td align="right" width="57"><font size="2" face="serif">2.03</font></td>
    <td align="left" width="51"><font size="2" face="serif">%</font></td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="54"><font size="2" face="serif">50,725</font></td>
    <td align="right">&nbsp;</td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="70"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="54">&nbsp;</td>
    <td align="right" width="9">&nbsp;</td>
    <td align="right" width="64"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="89">&nbsp;</td>
  </tr>
  <tr valign="bottom" bgcolor="#FFFFFF">
    <td align="left" width="401"><font size="2" face="serif">Waterstone Market
      Neutral Mac 51, Ltd.</font></td>
    <td align="right" width="61"><font size="2" face="serif">2,448,000</font></td>
    <td align="right" width="17">&nbsp;</td>
    <td align="left" width="11">&nbsp;</td>
    <td align="right" width="57"><font size="2" face="serif">&#151;</font></td>
    <td align="left" width="51">&nbsp;</td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="54"><font size="2" face="serif">17,739</font></td>
    <td align="right">&nbsp;</td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="70"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="54">&nbsp;</td>
    <td align="right" width="9">&nbsp;</td>
    <td align="right" width="64"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="89">&nbsp;</td>
  </tr>
  <tr valign="bottom" bgcolor="#FFFFFF">
    <td align="left" width="401"><font size="2" face="serif">Waterstone Market
        Neutral Master Fund, Ltd.</font></td>
    <td align="right" width="61"><font size="2" face="serif">4,552,000</font></td>
    <td align="right" width="17">&nbsp;</td>
    <td align="left" width="11">&nbsp;</td>
    <td align="right" width="57"><font size="2" face="serif">1.32</font></td>
    <td align="left" width="51"><font size="2" face="serif">%</font></td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="54"><font size="2" face="serif">32,986</font></td>
    <td align="right">&nbsp;</td>
    <td align="right" width="5">&nbsp;</td>
    <td align="right" width="70"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="54">&nbsp;</td>
    <td align="right" width="9">&nbsp;</td>
    <td align="right" width="64"><font size="2" face="serif">&#151;</font></td>
    <td align="right" width="89">&nbsp;</td>
  </tr>
</table>
<hr align="left" width="100" size="1" noshade>
<table width="100%" cellspacing="0" cellpadding="0" border="0">
<tr valign="top">
<td width="3%"><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>
</table>
<table width="100%" cellspacing="0" cellpadding="0" border="0">
<tr valign="top">
  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
</tr>
<tr valign="top">
<td width="3%"><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>
</table>
<table width="100%" cellspacing="0" cellpadding="0" border="0">
<tr valign="top">
  <td>&nbsp;</td>
  <td align="left">&nbsp;</td>
</tr>
<tr valign="top">
<td width="3%"><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>
</table>
<table width="100%" cellspacing="0" cellpadding="0" border="0">
  <tr valign="top">
    <td>&nbsp;</td>
    <td align="left">&nbsp;</td>
  </tr>
  <tr valign="top">
    <td width="3%"><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 88,312,341 Brandywine common shares outstanding
      as of December 20, 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 88,312,341 Brandywine common shares outstanding
      as of December 20, 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 width="3%">&nbsp;</td>
    <td align="left">&nbsp;</td>
  </tr>
  <tr valign="top">
    <td width="3%"><font face="serif" size="2">(1)</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>
  <tr valign="top">
    <td width="3%">&nbsp;</td>
    <td align="left">&nbsp;</td>
  </tr>
</table>
<hr noshade align="center" width="100%" size="2">
</body>
</html>
</TEXT>
</DOCUMENT>
</SUBMISSION>
