In Zuendel v. Zuendel (1992), 63 Ohio St.3d 733, 590 N.E.2d 1260, the court held that a probate court did not have jurisdiction to render a declaratory judgment regarding the validity of a contract between the beneficiaries of an estate that provided for a division of a testator's estate in a manner contrary to the division established by the testator's will. Zuendel at syllabus. R.C. 2721.05 permits any person interested in the administration of a trust to seek a declaration of rights or legal relations determining any question arising in the administration of the trust, including questions of construction. R.C. 2721.05(C); see, also, Zuendel at 735.