Wis. Stat. § 768.04: Time for filing actions.

(1) All actions for breach of contract, now existing, to marry shall be commenced, and the process, pleading or paper setting forth the same filed, within 6 months of January 1, 1960 and, if not so commenced and filed, shall thereafter be barred.

(2) Actions for alienation of affection and criminal conversation accruing upon or prior to April 12, 1972 shall be commenced, and the process, pleading or paper setting forth the same filed, within 6 months after January 1, 1972, and, if not so commenced and filed, shall thereafter be barred.