Missouri Revised Statutes Title XXXI. Trusts and Estates of Decedents and Persons Under Disability § 456.033. Effect of registration

1. By registering a trust, or accepting the trusteeship of a registered trust, the trustee submits personally to the jurisdiction of the court in any proceeding involving the internal affairs of the trust that may be initiated by any interested person while the trust remains registered. Notice of any such proceeding shall be delivered to the trustee or mailed to him by ordinary first-class mail at his address as listed in the registration statement or as thereafter reported to the court and to his address as then known to the petitioner.

2. To the extent of their interests in the trust, all beneficiaries of a trust registered in this state are subject to the jurisdiction of the court of registration for the purposes of proceedings involving internal affairs of the trust, provided notice is given pursuant to section 472.100.

3. “Interested persons” include beneficiaries and any others having a property right in or claim against a trust estate which may be affected by a judicial proceeding. It also includes persons and other fiduciaries representing interested persons. The meaning as it relates to particular persons may vary from time to time and must be determined according to the particular purposes of, and matter involved in, any proceeding.

4. “Internal affairs” proceedings, without limitation, are those which involve interpretation or construction of the terms of the trust by declarations, instructions or judgments as to the existence, nonexistence and extent of rights, powers, privileges, immunities, duties, liabilities and remedies of trustees and beneficiaries in the administration and distribution of trusts, including but not limited to proceedings concerning: