Conn. Gen. Stat. § 45a-499n: Jurisdiction over trustee and beneficiary.

(a) If a trustee accepts trusteeship of a trust having its principal place of administration in this state or moves the principal place of administration to this state, the trustee submits personally to the jurisdiction of the courts of this state regarding any matter involving the trust.

(b) With respect to their interests in the trust, the beneficiaries of a trust having its principal place of administration in this state are subject to the jurisdiction of the courts of this state regarding any matter involving the trust. If a beneficiary accepts a distribution from such a trust, the beneficiary submits personally to the jurisdiction of the courts of this state regarding any matter involving the trust.

(c) This section shall not preclude other methods of obtaining jurisdiction over a trustee, beneficiary or other person receiving property from the trust.

(d) Notwithstanding the provisions of subsections (a) to (c), inclusive, of this section, the courts of this state have jurisdiction over the trustee of a charitable trust if either the primary charitable beneficiary or the intended charitable benefit is located in this state.