<SEC-DOCUMENT>0001209191-16-139500.txt : 20160901
<SEC-HEADER>0001209191-16-139500.hdr.sgml : 20160901
<ACCEPTANCE-DATETIME>20160901175033
ACCESSION NUMBER:		0001209191-16-139500
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160829
FILED AS OF DATE:		20160901
DATE AS OF CHANGE:		20160901

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CULLEN/FROST BANKERS, INC.
		CENTRAL INDEX KEY:			0000039263
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				741751768
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		100 W HOUSTON ST
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78205
		BUSINESS PHONE:		210-220-4011

	MAIL ADDRESS:	
		STREET 1:		POST OFFICE BOX 1600
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78296-1600

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CULLEN FROST BANKERS INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FROST BANK CORP
		DATE OF NAME CHANGE:	19770823

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Wood Jack A
		CENTRAL INDEX KEY:			0001614863

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13221
		FILM NUMBER:		161866616

	MAIL ADDRESS:	
		STREET 1:		3501 FAUDREE
		CITY:			ODESSA
		STATE:			TX
		ZIP:			79765
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>doc4a.xml
<DESCRIPTION>FORM 4/A SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2016-08-29</periodOfReport>

    <dateOfOriginalSubmission>2016-08-31</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000039263</issuerCik>
        <issuerName>CULLEN/FROST BANKERS, INC.</issuerName>
        <issuerTradingSymbol>CFR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001614863</rptOwnerCik>
            <rptOwnerName>Wood Jack A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3501 FAUDREE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ODESSA</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>79765</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.01 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2016-08-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6600</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>72.70</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>899123</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Through Limited Partnership</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price in Column 4 is based on a weighted average price.  The prices actually paid range from $72.53 to $73.08.  The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.</footnote>
        <footnote id="F2">This report on Form 4/A corrects a typographical error in Table 1, Box 5 with respect to the amount of securities beneficially owned following this transaction.  No other changes to the original Form 4 are made by this filing.</footnote>
        <footnote id="F3">Shares held by JAW Resources, LP (the &quot;Partnership&quot;) of which the reporting person is a general partner.  The reporting person is also the sole member and sole manager of JTKW, LLC, which is the sole general partner of the Partnership.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jack A. Wood</signatureName>
        <signatureDate>2016-09-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
