Great-great-great-grandchild's husband.
My great-great-great-grandson-in-law is a good person.
My great-great-great-grandson is a good person.
Great-great-great-granddaughter's husband.
My great-great-great-grandson-in-law is a good person.
Great-great-great-grandchild's son.
My great-great-great-great-grandson is a good person.
Great-great-great-grandchild's son.
great-great-great-great-grandson.