The provisions of Article 41, paragraphs (1) and (2) apply mutatis mutandis to an action for invalidation of filiation referred to in Article 786 of the Civil Code. In this case, the term "father" in Article 41, paragraphs (1) and (2) is deemed to be replaced with "person who acknowledged filiation" and the phrase "Article 777 (limited to the part related to item (i)) or Article 778 (limited to the part related to item (i))" in paragraph (1) of that Article is deemed to be replaced with "Article 786, paragraph (1) (limited to the part related to item (ii))."
If a child dies during the period prescribed in Article 786, paragraph (1) (limited to the part related to item (i)) of the Civil Code without filing an action for invalidation of filiation, the child's lineal descendant or legal representative may file an action for invalidation of filiation. In this case, the action must be filed within one year from the day on which the child died.
子が民法第七百八十六条第一項（第一号に係る部分に限る。）に定める期間内に認知の無効の訴えを提起しないで死亡したときは、子の直系卑属又はその法定代理人は、認知の無効の訴えを提起することができる。この場合においては、子の死亡の日から一年以内にその訴えを提起しなければならない。
If a child dies after filing an action for invalidation of filiation during the period prescribed in Article 786, paragraph (1) (limited to the part related to item (i)) of the Civil Code, a person permitted to file an action for invalidation of filiation pursuant to the provisions of the preceding paragraph may be substituted in the court proceedings within six months from the day of the child's death. In this case, the provisions of the second sentence of Article 124, paragraph (1) of the Code of Civil Procedure do not apply.
子が民法第七百八十六条第一項（第一号に係る部分に限る。）に定める期間内に認知の無効の訴えを提起した後に死亡した場合には、前項の規定により認知の無効の訴えを提起することができる者は、子の死亡の日から六月以内に訴訟手続を受け継ぐことができる。この場合においては、民事訴訟法第百二十四条第一項後段の規定は、適用しない。