Ladislaus III
Notable old Bulgarian Orthodox temples include the metropolitan Dormition of the Theotokos Cathedral (of the diocese of Varna and Veliki Preslav); the early-17th-century Theotokos Panagia (built on the site of an earlier church where Ladislaus III was perhaps buried); the St. Athanasius (former Greek metropolitan cathedral) on the footprint of a razed 10th-century church; the 15th-century St. Petka Parashkeva chapel; the seamen's church of Saint Nicholas; the Archangel Michael chapel, site of the first Bulgarian secular school from the National Revival era; and the Sts. Constantine and Helena church of the 14th-century suburban monastery of the same name.