Giorgio d'Antiochia (ΓΕΩΡΓΙΟΣ ΑΝΤΙΟΧΕΥΣ) and the MARTORANA (Santa Maria D Ammiraglio), Palermo, Sicily. MARTORANA. Georgios founded the church of Santa Maria dell'Ammiraglio (Saint Mary of the Admiral) in Palermo, later known as the Martorana, built on the foundations of a pre-existing Sicelo-Greek Church of Saint Nicholas in Palermo. It was built and functioned as an ORTHODOX CHURCH until the violent covert in to roman catholic
Stefanos Sotiriou (Wed,) studied this question.