Wis. Stat. § 53.28: Notice of proceeding.

If a petition for the appointment of a guardian of the person or issuance of an order appointing a guardian of the estate is brought in this state and this state was not the respondent’s home state on the date the petition was filed, in addition to complying with the notice requirements of this state, notice of the petition must be given to those persons who would be entitled to notice of the petition if a proceeding were brought in the respondent’s home state. The notice must be given in the same manner as notice is required to be given in this state.