玄孫

noun

(archaic, possibly dialect) a descendant four generations down: a great-great-grandchild, the grandchild of a grandchild

私の玄孫がこの家を継ぐでしょう。

My great-great-grandchildren will inherit this house.

意味（1）

(archaic, possibly dialect) a descendant four generations down: a great-great-grandchild, the grandchild of a grandchild