Wis. Stat. § 852.10: Disinheritance from intestate share.

(1) A decedent’s will may exclude or limit the right of an individual or class to succeed to property passing by intestate succession.

(2) The share of the intestate estate that would have passed to the individual or class described in sub. (1) passes as if the individual or each member of the class had disclaimed his or her intestate share under s. 854.13.

(3) This section does not apply if the individual or all members of the class described in sub. (1) predecease the testator.