Wis. Stat. § 69.19

If a person has died in this state and final disposition of the person's corpse has been effected but no certificate of death is on file one year after a death, a person with a direct and tangible interest in having a certificate of death registered may petition the circuit court of the county in which the death is alleged to have occurred. If the court finds that the petitioner has established the facts of the death required on the certificate of death, the clerk of the court shall report the court's determination to the state registrar on a form prescribed by the state registrar, along with the fee required under s. 69.22 . Upon receipt of the report, the state registrar shall register the death certificate and send a copy to the local registrar under s. 69.03 (11) . The local registrar shall file the copy.