Washington, D.C. 20549

                                     FORM 15

 Certification and Notice of Termination of Registration under Section 12(g) of
the Securities Exchange Act of 1934 or Suspension of Duty to File Reports Under
                    Sections 13 and 15(d) of the Securities
                              Exchange Act of 1934.

                        Commission File Number: 000-10849

                             ALLEGIANT BANCORP, INC.
             (Exact name of registrant as specified in its charter)

                               10401 Clayton Road
                            St. Louis, Missouri 63131
                                 (314) 692-8800
    (Address, including zip code, and telephone number, including area code,
                  of registrant's principal executive offices)

                          Common Stock, $.01 par value
            (Title of each class of securities covered by this Form)

   (Titles of all other classes of securities for which a duty to file reports
                      under section 13(a) or 15(d) remains)

     Please place an X in the box(es) to designate the appropriate rule
provisions(s) relied upon to terminate or suspend the duty to file reports:

         Rule 12g-4(a)(1)(i)    [x]        Rule 12h-3(b)(1)(ii)    [ ]
         Rule 12g-4(a)(1)(ii)   [ ]        Rule 12h-3(b)(2)(i)     [ ]
         Rule 12g-4(a)(2)(i)    [ ]        Rule 12h-3(b)(2)(ii)    [ ]
         Rule 12g-4(a)(2)(ii)   [ ]        Rule 15d-6              [ ]
         Rule 12h-3(b)(1)(i)    [X]

     Approximate number of holders of record as of the certification or notice
date: None

     National City Corporation is filing this Form 15 on behalf of Allegiant
Bancorp, Inc. as successor by merger.

     Pursuant to the requirements of the Securities Exchange Act of 1934,
National City Corporation has caused this certification/notice to be signed on
its behalf by the undersigned duly authorized person.

Date: April 9, 2004                  By:  /s/ David L. Zoeller
                                              David L. Zoeller
                                              Executive Vice President and
                                              General Counsel