'Sister' in the Bible

But Jehoshabeath, the daughter of the king, secretly took Joash, the son of Ahaziah, away from among the king's sons who were put to death, and put him and the woman who took care of him in a bedroom. So Jehoshabeath, the daughter of King Jehoram, the wife of Jehoiada the priest and sister of Ahaziah, kept him safe from Athaliah, so that she did not put him to death.