VOTING AGREEMENT

Exhibit 99.3

VOTING AGREEMENT

VOTING AGREEMENT (“Agreement”), dated as of January 18, 2007, by and between CHITTENDEN CORPORATION, a Vermont corporation (“Buyer”), and the undersigned holder (“Shareholder”) of common stock, par value $1.00 per share (“Common Stock”), of XXXXXXX MERCHANTS BANCSHARES, INC., a Maine corporation (the “Company”).

WHEREAS, concurrently with the execution of this Agreement, Buyer and the Company have entered into an Agreement and Plan of Merger (as such agreement may be subsequently amended or modified, the “Merger Agreement”), providing for the merger of the Company with and into Buyer (the “Merger”);

WHEREAS, the Shareholder beneficially owns and has sole voting power with respect to the number of shares of Common Stock, and holds stock options or other rights to acquire the number of shares of Common Stock indicated opposite the Shareholder’s name on Schedule 1 attached hereto (as used herein, the term “Shares” means all shares of Common Stock, whether such shares of Common Stock are held by the Shareholder on the date of this Agreement or are subsequently acquired prior to the Expiration Date (as defined in Section 2), whether by the exercise of any stock options or otherwise);

WHEREAS, it is a condition to the willingness of Buyer to enter into the Merger Agreement that the Shareholder execute and deliver this Agreement; and

WHEREAS, all capitalized terms used in this Agreement without definition herein shall have the meanings ascribed to them in the Merger Agreement.

NOW, THEREFORE, in consideration of the foregoing recitals, the mutual covenants and agreements contained herein, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, and intending to be legally bound hereby, the Shareholder and Buyer agree as follows:

1. Agreement to Vote Shares. The Shareholder agrees that, prior to the Expiration Date, at any meeting of the shareholders of the Company, or any adjournment or postponement thereof, or in connection with any written consent of the shareholders of the Company, with respect to the Merger, the Merger Agreement or any Acquisition Proposal, the Shareholder shall:

(a) appear at such meeting or otherwise cause the Shares to be counted as present thereat for purposes of calculating a quorum; and

(b) vote (or cause to be voted), or deliver a written consent (or cause a consent to be delivered) covering, all of the Shares that such Shareholder shall be entitled to so vote (i) in favor of adoption and approval of the Merger Agreement and the transactions contemplated thereby, including the Merger; (ii) against any action or agreement that would result in a breach of any covenant, representation or warranty, or any other obligation or agreement of the Company contained in the Merger Agreement or of the Shareholder contained in this Agreement, or that would preclude fulfillment of a condition under the Merger Agreement to the

Company’s and Buyer’s respective obligations to consummate the Merger; and (iii) against any Acquisition Proposal, or any agreement or transaction that is intended, or could reasonably be expected, to impede, interfere with, delay, postpone, discourage or adversely affect the consummation of the Merger or any of the transactions contemplated by the Merger Agreement.

Any such vote shall be cast or consent shall be given in accordance with such procedures relating thereto so as to ensure that it is duly counted for purposes of determining that a quorum is present and for purposes of recording the results of such vote or consent.

2. Expiration Date. As used in this Agreement, the term “Expiration Date” shall mean the earliest to occur of (i) the Effective Time, (ii) such date and time as the Merger Agreement shall be terminated pursuant to Article VIII thereof, or (iii) upon mutual written agreement of the parties to terminate this Agreement. Upon termination or expiration of this Agreement, no party shall have any further obligations or liabilities under this Agreement; provided, however, that such termination or expiration shall not relieve any party from liability for any willful breach of this Agreement prior to the termination or expiration hereof.

3. Agreement to Retain Shares. The Shareholder shall not, except as contemplated by this Agreement or the Merger Agreement, directly or indirectly, sell, assign, transfer, assign, or otherwise dispose of (including, without limitation, by the creation of a Lien (as defined in Section 4(c)), or enter into any contract, option, commitment or other arrangement or understanding with respect to the sale, transfer, assignment or other disposition of, any Shares beneficially owned by the Shareholder. Notwithstanding the foregoing, the Shareholder may make (a) transfers by will or by operation of law, in which case this Agreement shall bind the transferee, (b) transfers in connection with estate and charitable planning purposes, including transfers to relatives, trusts and charitable organizations, subject to the transferee agreeing in writing to be bound by the terms of, and perform the obligations of the Shareholder under, this Agreement, and (c) as Buyer may otherwise agree in writing in its sole discretion.

4. Representations and Warranties of Shareholder. The Shareholder hereby represents and warrants to Buyer as follows:

(a) the Shareholder has the complete and unrestricted power and the unqualified right to enter into and perform the terms of this Agreement, and no consent, approval, authorization or filing is required in connection therewith;

(b) this Agreement (assuming this Agreement constitutes a valid and binding agreement of Buyer) is a valid and legally binding agreement with respect to the Shareholder, enforceable in accordance with its terms (except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer and similar laws of general applicability relating to or affecting creditors’ rights or by general equity principles);

(c) the Shareholder beneficially owns the number of Shares indicated opposite such Shareholder’s name on Schedule 1, free and clear of any liens, claims, charges or other encumbrances or restrictions of any kind whatsoever (“Liens”), and has sole, and otherwise unrestricted, voting and investment power with respect to such Shares;

(d) the Shareholder understands that at the Effective Time of the Merger, (i) each outstanding Share listed on Schedule 1 shall be automatically cancelled

and converted into the right to receive, subject to the terms and provisions of the Merger Agreement, (A) 1.02 shares of Buyer Common Stock or (B) a cash amount equal to $31.00 per Share (subject to the provisions of Section 2.4(a) of the Merger Agreement), and (ii) to the extent not exercised or otherwise terminated in accordance with the terms of the Merger Agreement prior to the Effective Time, each option to purchase Shares listed on Schedule 1 shall be automatically cancelled and converted into the right to receive the product of (x) the number of Shares provided for in such option and (y) the excess, if any, of $31.00 over the exercise price provided for in such option, as further described in the Merger Agreement; and

(e) the execution and delivery of this Agreement by the Shareholder does not, and the performance by the Shareholder of his, her or its obligations hereunder and the consummation by the Shareholder of the transactions contemplated hereby will not, violate or conflict with, or constitute a default under, any agreement, instrument, contract or other obligation or any order, arbitration award, judgment or decree to which the Shareholder is a party or by which the Shareholder is bound, or any statute, rule or regulation to which the Shareholder is subject or, in the event that the Shareholder is a corporation, partnership, trust or other entity, any bylaw or other organizational document of the Shareholder.

5. Irrevocable Proxy. Subject to the last sentence of this Section 5, by execution of this Agreement, the Shareholder does hereby appoint Buyer with full power of substitution and resubstitution, as the Shareholder’s true and lawful attorney and irrevocable proxy, to the full extent of the Shareholder’s rights with respect to the Shares, to vote, if the Shareholder is unable to perform his, her or its obligations under this Agreement, each of such Shares that the Shareholder shall be entitled to so vote with respect to the matters set forth in Section 1 hereof at any meeting of the shareholders of the Company, and at any adjournment or postponement thereof, and in connection with any action of the shareholders of the Company taken by written consent. The Shareholder intends this proxy to be irrevocable and coupled with an interest hereafter until the Expiration Date and hereby revokes any proxy previously granted by the Shareholder with respect to the Shares. Notwithstanding anything contained herein to the contrary, this irrevocable proxy shall automatically terminate upon the Expiration Date of this Agreement.

6. No Solicitation. From and after the date hereof until the Expiration Date, the Shareholder, in his, her or its capacity as a shareholder of the Company, shall not, nor shall such Shareholder authorize any partner, officer, director, advisor or representative of, such Shareholder or any of his, her or its affiliates to (and, to the extent applicable to the Shareholder, such Shareholder shall use reasonable best efforts to prohibit any of his, her or its representatives or affiliates to), (a) initiate, solicit, induce or knowingly encourage, or take any action to facilitate the making of, any inquiry, offer or proposal which constitutes, or could reasonably be expected to lead to, an Acquisition Proposal, (b) participate in any discussions or negotiations regarding any Acquisition Proposal, or furnish, or otherwise afford access, to any person (other than Buyer) any information or data with respect to the Company or any of its Subsidiaries or otherwise relating to an Acquisition Proposal, (c) enter into any agreement, agreement in principle or letter of intent with respect to an Acquisition Proposal, (d) solicit proxies or become a “participant” in a “solicitation” (as such terms are defined in Regulation 14A under the Exchange Act) with respect to an Acquisition Proposal (other than the Merger Agreement) or otherwise encourage or assist any party in taking or planning any action that would compete with, restrain or otherwise serve to interfere with or inhibit the timely consummation of the Merger in accordance with the terms of the Merger Agreement, (e) initiate a shareholders’ vote or action by consent of the Company’s shareholders with respect to an Acquisition Proposal, or (f) except by reason of this Agreement, become a member of a “group” (as such term is used in Section 13(d) of the Exchange Act) with respect to any voting securities of the Company that takes any action in support of an Acquisition Proposal.

7. Specific Enforcement. The Shareholder has signed this Agreement intending to be legally bound thereby. The Shareholder expressly agrees that this Agreement shall be specifically enforceable in any court of competent jurisdiction in accordance with its terms against the Shareholder. All of the covenants and agreements contained in this Agreement shall be binding upon, and inure to the benefit of, the respective parties and their permitted successors, assigns, heirs, executors, administrators and other legal representatives, as the case may be.

8. No Waivers. No waivers of any breach of this Agreement extended by Buyer to the Shareholder shall be construed as a waiver of any rights or remedies of Buyer with respect to any other shareholder of the Company who has executed an agreement substantially in the form of this Agreement with respect to Shares beneficially owned by such shareholder or with respect to any subsequent breach of the Shareholder or any other such shareholder of the Company. No waiver of any provisions hereof by either party shall be deemed a waiver of any other provisions hereof by any such party, nor shall any such waiver be deemed a continuing waiver of any provision hereof by such party.

9. Capacity as Shareholder. The Shareholder is signing this Agreement solely in the Shareholder’s capacity as a shareholder of the Company, and not in the Shareholder’s capacity as a director, officer or employee of the Company or any of its Subsidiaries or in the Shareholder’s capacity as a trustee or fiduciary of any employee benefit plan or trust. Notwithstanding anything herein to the contrary, nothing herein shall in any way restrict a director and/or officer of the Company in the exercise of his or her fiduciary duties, consistent with the terms of the Merger Agreement, as a director and/or officer of the Company or in his or her capacity as a trustee or fiduciary of any employee benefit plan or trust, or prevent or be construed to create any obligation on the part of any director and/or officer of the Company or any trustee or fiduciary of any employee benefit plan or trust from taking any action in his or her capacity as a director of the Company.

10. Entire Agreement; Amendments. This Agreement supersedes all prior agreements, written or oral, among the parties hereto with respect to the subject matter hereof and contains the entire agreement among the parties with respect to the subject matter hereof. This Agreement may not be amended, supplemented or modified, and no provisions hereof may be modified or waived, except by an instrument in writing signed by each party hereto.

11. Further Assurances. From time to time and without additional consideration, the Shareholder shall execute and deliver, or cause to be executed and delivered, such additional transfers, assignments, endorsements, proxies, consents and other instruments, and shall take such further actions, as Buyer may request for the purpose of carrying out and furthering the intent of this Agreement.

12. Severability. If any term or other provision of this Agreement is determined to be invalid, illegal or incapable of being enforced by any rule of law or public policy, all other conditions and provisions of this Agreement shall nevertheless remain in full force and effect so long as the economic or legal substance of the transactions contemplated hereby is not affected in any manner materially adverse to any party. Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced, the parties hereto shall negotiate in good faith to modify this Agreement so as to effect the original intent of the parties as closely as possible in an acceptable manner to the end that the transactions contemplated hereby are fulfilled to the extent possible.

13. Counterparts. This Agreement may be executed in one or more counterparts, each of which will be deemed an original but all of which together shall constitute one and the same instrument.

14. Public Disclosure. The Shareholder shall not issue or cause the publication of any press release or other public announcement (to the extent not previously issued or made in accordance with the Merger Agreement) with respect to this Agreement, the Merger Agreement or the transactions contemplated by the Merger Agreement, without the prior consent of Buyer. The Shareholder hereby permits Buyer to publish and disclose in any document and/or schedule filed by Buyer with the SEC such Shareholder’s identity and ownership of Shares and the nature of such Shareholder’s commitments and obligations pursuant to this Agreement.

15. Governing Law. This Agreement shall be governed by the laws of the State of Vermont, without giving effect to the principles of conflicts of laws thereof.

16. No Agreement Until Executed. Irrespective of negotiations among the parties or the exchanging of drafts of this Agreement, this Agreement shall not constitute or be deemed to evidence a contract, agreement, arrangement or understanding between the parties hereto unless and until (a) the Board of Directors of the Company has approved, for purposes of any applicable anti-takeover laws and regulations, and any applicable provision of the Company’s Articles of Incorporation, the possible acquisition of the Shares by Buyer pursuant to the Merger Agreement, (b) the Merger Agreement is executed by all parties thereto, and (c) this Agreement is executed by all parties hereto.

[SIGNATURE PAGE FOLLOWS]

EXECUTED as of the date first above written.

SHAREHOLDER

Name:

XXXXXXXXXX CORPORATION

By:

Name:

Title:

SCHEDULE 1

Shareholder Shares Options