Wis. Stat. § 701.0203: Subject matter jurisdiction.

(1) The circuit court assigned to exercise probate jurisdiction has exclusive jurisdiction of proceedings in this state brought by a trustee, trust protector, directing party, or beneficiary concerning the administration of a trust.

(2) This section does not preclude judicial or nonjudicial alternative dispute resolution, including nonjudicial settlement agreements described in s. 701.0111.