Philologist János Horváth, who claimed Peter was identical with Anonymus, considered his baptismal name was Peter and identified him with a certain bishop Torda (Turda) – his pagan name, son of "dux" Velek, who was referred by Andrew II in 1225. In this theory, Peter's mother was a Greek woman, possibly a maid of honor of Béla's first wife Agnes of Antioch and he also had a sister Anne, who married Bors, son of Dominic Miskolc and Margaret, spouse of an unidentified Ban Stephen. Accordingly, Peter came from the lineage of chieftain Velek, who had participated in the Hungarian conquest of the Carpathian Basin and is a recurring character in the "Gesta Hungariorum". As Anonymus had a detailed knowledge of the lands along the upper courses of the river Tisza, especially the bishopric lands of the Diocese of Eger, historian Károly Sólyom, who also identified Anonymus with Bishop Peter, claimed that Duke Andrew and Peter spent their youth in the episcopal manor of Peter, Bishop of Eger in the 1180s. During that time, the younger prince Andrew was raised as a potential pretender to the neighboring Principality of Halych. Regardless his identification with Anonymus, Sólyom considered Bishop Peter himself also originated from the borderlands of Zaránd County, based on his other name variants in the contemporary documents. He also claimed the town of Pecica (Pécska), present-day in Romania, is named after him.