sentences:  Sakai Hirochika, who was the son of Chikauji, had two sons, and their descendants gave rise to the two main branches of the Sakai clan.The Senior branch of the Sakai, are descendants of Sakai Tadatsugu (1527–1596), who was a vassal of Tokugawa Ieyasu.Tadatsugu was charged with the defense of Yoshida Castle in Mikawa province.