King Leo
In May, 1219 Stephanie's father died. He had made the barons swear an oath of allegiance to his great-nephew Raymond-Roupen, who became his heir. However, on his death bed King Leo changed the succession. He made his daughter Isabelle his heir and released the barons from their oath of allegiance. Stephanie was still alive at the time and would have had more right because she was the older daughter. Also, Stephanie had a son. Stephanie's husband, John pressed the claim on behalf of his wife. Raymond-Roupen also pressed his claim on the throne.