①The share in the decedent's estate of a lineal descendant who becomes an heir pursuant to the provisions of Article 887, paragraph (2) or paragraph (3) is the same as the share that person's lineal ascendant would have received; provided, however, that if there are two or more such lineal descendants, their shares of the estate are determined in accordance with the provisions of the preceding Article.

②The provisions of the preceding paragraph apply mutatis mutandis if the child of a sibling becomes an heir pursuant to the provisions of Article 889, paragraph (2).