Document:

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                                                                     Exhibit 4.3

                              CERTIFICATE OF TRUST

      THIS CERTIFICATE OF TRUST OF SECOND BANCORP CAPITAL TRUST I (the "Trust")
is being duly executed and filed by Wilmington Trust Company, a Delaware banking
corporation, R.L. (Rick) Blossom, David L. Kellerman and Christopher Stanitz,
each an individual, as trustees, to form a business trust under the Delaware
Business Trust Act (12 Del. C. Section 3801 et seq.) (the "Act").

1.    NAME. The name of the business trust formed hereby is Second Bancorp
      Capital Trust I.

2.    DELAWARE TRUSTEE. The name and business address of the trustee of the
      Trust in the State of Delaware is Wilmington Trust Company, Rodney Square
      North, 1100 North Market Street, Wilmington, Delaware 19890-0001,
      Attention: Corporate Trust Administration.

3.    EFFECTIVE DATE. This Certificate of Trust shall be effective on
      AUGUST 29, 2001.
      ---------------

      IN WITNESS WHEREOF, the undersigned have executed this Certificate of
Trust in accordance with Section 3811(a)(1) of the Act.

WILMINGTON TRUST COMPANY, as
trustee

By:  /s/ Kathleen A. Pedelini
   ------------------------------------

Name:    Kathleen A. Pedelini
     ----------------------------------

Title:  Administrative Account Manager
      ---------------------------------

      /s/ R.L. Blossom          , as Trustee
--------------------------------
Name: R.L. (Rick) Blossom

      /s/ David L. Kellerman    , as Trustee
--------------------------------
Name: David L. Kellerman

      /s/ Christopher Stanitz   , as Trustee
--------------------------------
Name:  Christopher Stanitz<PAGE>   1
                                                                     Exhibit 4.4

                                 TRUST AGREEMENT

      This TRUST AGREEMENT, dated as of August 29 , 2001 (this "Trust
Agreement"), among (i) Second Bancorp Incorporated, an Ohio corporation (the
"Depositor"), (ii) Wilmington Trust Company, a Delaware banking corporation, as
trustee, and (iii) R.L. (Rick) Blossom, David L. Kellerman and Christopher
Stanitz, each an individual, as trustees (each of such trustees in (ii) and
(iii) a "Trustee" and collectively, the "Trustees"). The Depositor and the
Trustees hereby agree as follows:

1.    The trust created hereby (the "Trust") shall be known as "Second Bancorp
      Capital Trust I" in which name the Trustees, or the Depositor to the
      extent provided herein, may engage in the transactions contemplated
      hereby, make and execute contracts, and sue and be sued.

2.    The Depositor hereby assigns, transfers, conveys and sets over to the
      Trustees the sum of Ten Dollars ($10.00). The Trustees hereby acknowledge
      receipt of such amount in trust from the Depositor, which amount shall
      constitute the initial trust estate. The Trustees hereby declare that they
      will hold the trust estate in trust for the Depositor. It is the intention
      of the parties hereto that the Trust created hereby constitute a business
      trust under Chapter 38 of Title 12 of the Delaware Code, 12 Del. C.
      Section 3801, ET SEQ. (the "Business Trust Act"), and that this document
      constitute the governing instrument of the Trust. The Trustees are hereby
      authorized and directed to execute and file a certificate of trust with
      the Delaware Secretary of State in accordance with the provisions of the
      Business Trust Act.

3.    The Depositor and the Trustees will enter into an amended and restated
      Trust Agreement, satisfactory to each such party and substantially in the
      form included as an exhibit to the 1933 Act Registration Statement (as
      defined below), to provide for the contemplated operation of the Trust
      created hereby and the issuance of Preferred Securities and Common
      Securities to be referred to therein. Prior to the execution and delivery
      of such amended and restated Trust Agreement, the Trustees shall not have
      any duty or obligation hereunder or with respect to the trust estate,
      except as otherwise required by applicable law or as may be necessary to
      obtain prior to such execution and delivery any licenses, consents or
      approvals required by applicable law or otherwise.

4.    The Depositor and the Trustees hereby authorize and direct the Depositor,
      as the sponsor of the Trust, (i) to file with the Securities and Exchange
      Commission (the "Commission") and execute, in each case on behalf of the
      Trust, (a) the Registration Statement on Form S-3 (the "1933 Act
      Registration Statement") (including any pre-effective or post-effective
      amendments to the 1933 Act Registration Statement), relating to the
      registration under the Securities Act of 1933, as amended, of the
      Preferred Securities of the Trust and possibly certain other securities
      and (b) a Registration Statement on Form 8-A (the "1934 Act Registration
      Statement") (including all pre-effective and post-effective amendments
      thereto) relating to the registration of the Preferred Securities of the
      Trust under the Securities Exchange Act of 1934, as amended; (ii) to file
      with the [Nasdaq National

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      Market] or a national stock exchange (each, an "Exchange") and execute on
      behalf of the Trust one or more listing applications and all other
      applications, statements, certificates, agreements and other instruments
      as shall be necessary or desirable to cause the Preferred Securities to be
      listed on any of the Exchanges; (iii) to file and execute on behalf of the
      Trust such applications, reports, surety bonds, irrevocable consents,
      appointments of attorney for service of process and other papers and
      documents as shall be necessary or desirable to register the Preferred
      Securities under the securities or blue sky laws of such jurisdictions as
      the Depositor, on behalf of the Trust, may deem necessary or desirable and
      (iv) to execute on behalf of the Trust that certain Underwriting Agreement
      relating to the Preferred Securities, among the Trust, the Depositor and
      the Underwriters named therein, substantially in the form included as an
      exhibit to the 1933 Act Registration Statement. In the event that any
      filing referred to in clauses (i), (ii) and (iii) above is required by the
      rules and regulations of the Commission, an Exchange or state securities
      or blue sky laws, to be executed on behalf of the Trust by one or more of
      the Trustees, each of the Trustees, in its or his capacity as a Trustee of
      the Trust, is hereby authorized and, to the extent so required, directed
      to join in any such filing and to execute on behalf of the Trust any and
      all of the foregoing, it being understood that Wilmington Trust Company in
      its capacity as a Trustee of the Trust shall not be required to join in
      any such filing or execute on behalf of the Trust any such document unless
      required by the rules and regulations of the Commission, the Exchange or
      state securities or blue sky laws. In connection with the filings referred
      to above, the Depositor and R.L. (Rick) Blossom, David L. Kellerman and
      Christopher Stanitz each as Trustees and not in their individual
      capacities, hereby constitutes and appoints R.L. (Rick) Blossom, David L.
      Kellerman and Christopher Stanitz, and each of them, as their true and
      lawful attorneys-in-fact and agents, with full power of substitution and
      resubstitution, for the Depositor or such Trustee or in the Depositor's or
      such Trustees' name, place and stead, in any and all capacities, to sign
      any and all amendments (including post-effective amendments) to the 1933
      Act Registration Statement and the 1934 Act Registration Statement and to
      file the same, with all exhibits thereto, and other documents in
      connection therewith, with the Commission, the Exchange and administrators
      of the state securities or blue sky laws, granting unto said
      attorneys-in-fact and agents full power and authority to do and perform
      each and every act and thing requisite and necessary to be done in
      connection therewith, as fully to all intents and purposes as the
      Depositor or such Trustee might or could to in person, hereby ratifying
      and confirming all that said attorneys-in-fact and agents or any of them,
      or their respective substitute or substitutes, shall do or cause to be
      done by virtue hereof.

5.    This Trust Agreement may be executed in one or more counterparts.

6.    The number of Trustees initially shall be four (4) and thereafter the
      number of Trustees shall be such number as shall be fixed from time to
      time by a written instrument signed by the Depositor which may increase or
      decrease the number of Trustees; provided, however, that to the extent
      required by the Business Trust Act, one Trustee shall either be a natural
      person who is a resident of the State of Delaware or, if not a natural
      person, an entity which has its principal place of business in the State
      of Delaware and otherwise meets the requirements of applicable Delaware
      law. Subject to the foregoing, the

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      Depositor is entitled to appoint or remove without cause any Trustee at
      any time. The Trustees may resign upon thirty (30) days' prior notice to
      the Depositor.

7.    This Trust Agreement shall be governed by, and construed in accordance
      with, the laws of the State of Delaware (without regard to conflict of
      laws principles).

8.    The Trustees (the "Fiduciary Indemnified Persons") shall not be liable,
      responsible or accountable in damages or otherwise to the Trust, the
      Depositor, the Trustees or any holder of the Trust's securities (the
      Trust, the Depositor and any holder of the Trust's securities being a
      "Covered Person") for any loss, damage or claim incurred by reason of any
      act or omission performed or omitted by the Fiduciary Indemnified Persons
      in good faith on behalf of the Trust and in a manner the Fiduciary
      Indemnified Persons reasonably believed to be within the scope of
      authority conferred on the Fiduciary Indemnified Persons by this Trust
      Agreement or by law, except that the Fiduciary Indemnified Persons shall
      be liable for any such loss, damage or claim incurred by reason of the
      Fiduciary Indemnified Person's gross negligence or bad faith with respect
      to such acts or omissions.

           The Fiduciary Indemnified Persons shall be fully protected in relying
in good faith upon the records of the Trust and upon such information, opinions,
reports or statements presented to the Trust by any person as to matters the
Fiduciary Indemnified Persons reasonably believes are within such other person's
professional or expert competence and who has been selected with reasonable care
by or on behalf of the Trust, including information, opinions, reports or
statements as to the value and amount of the assets, liabilities, profits,
losses, or any other facts pertinent to the existence and amount of assets from
which distributions to holders of Trust's securities might properly be paid.

9.    The Depositor agrees, to the fullest extent permitted by applicable law,

      (a)   to indemnify and hold harmless each Fiduciary Indemnified Person, or
            any of its officers, directors, shareholders, employees,
            representatives or agents, from and against any loss, damage,
            liability, tax, penalty, expense or claim of any kind or nature
            whatsoever incurred by the Fiduciary Indemnified Persons by reason
            of the creation, operation or termination of the Trust in a manner
            the Fiduciary Indemnified Persons reasonably believed to be within
            the scope of authority conferred on the Fiduciary Indemnified
            Persons by this Trust Agreement, except that no Fiduciary
            Indemnified Persons shall be entitled to be indemnified in respect
            of any loss, damage or claim incurred by the Fiduciary Indemnified
            Persons by reason of gross negligence or willful misconduct with
            respect to such acts or omissions; and

      (b)   to advance expenses (including legal fees) incurred by a Fiduciary
            Indemnified Person in defending any claim, demand, action, suit or
            proceeding shall, from time to time, prior to the final disposition
            of such claim, demand, action, suit or proceeding, upon receipt by
            the Trust of an undertaking by or on behalf of such Fiduciary
            Indemnified Persons to repay such amount if it shall be determined
            that

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            such Fiduciary Indemnified Person is not entitled to be indemnified
            as authorized in the preceding subsection.

10.   The provisions of Section 9 shall survive the termination of this Trust
      Agreement or the earlier resignation or removal of the Fiduciary
      Indemnified Persons.

      IN WITNESS WHEREOF, the parties hereto have caused this Trust Agreement to
be duly executed as of the day and year first above written.

                                   SECOND BANCORP INCORPORATED
                                     as Depositor

                                   By:      /s/ R.L. BLossom
                                      -----------------------------------
                                        Name:   R.L. (Rick) Blossom
                                        Title:  President

                                   WILMINGTON TRUST COMPANY,
                                     as Trustee

                                   By:      /s/ Kathleen A. Pedelini
                                      -----------------------------------
                                        Name:   Kathleen A. Pedelini
                                        Title:  Administrative Account Manager

                                       /s/ R.L. BLossom         , as Trustee
                                   -----------------------------
                                   Name:   R.L. (Rick) Blossom

                                       /s/ David L. Kellerman   , as Trustee
                                   -----------------------------
                                   Name:   David L. Kellerman

                                       /s/ Christopher Stanitz  , as Trustee
                                   -----------------------------
                                   Name:   Christopher Stanitz

                                      -4-

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