Béla III of Hungary
During the reign of Stephen II of Hungary, Ladislaus's shrine in the cathedral of Várad became a preferred venue for trials by ordeal. However, it cannot be determined whether Ladislaus became subject to veneration soon after his death, or if his cult emerged after he was canonized by Béla III of Hungary on 27 June 1192. Béla had lived in the Byzantine court, where Ladislaus's daughter, Irene, was venerated as a saint.