Wis. Stat. § 863.09: Allowance for tombstone and care of grave.

(1) Tombstone. In case no provision is made in the will for a tombstone or monument or marker at the grave of the decedent, and none has been erected, the personal representative may expend a reasonable sum for that purpose. The expenditure is subject to the approval of the court and is classed as funeral expense.

(2) Care of grave. The court may order the personal representative to pay a suitable amount for the care of the grave of the decedent. The expenditure is classed as funeral expense.