Gian Antonio Lazier (9 June 1678 – 8 April 1738), also known under his claimed official name Ioannes IX Antonius I Angelus Flavius Comnenus Lascaris Palaeologus, and various variations thereof, was an 18th-century Italian impostor and pretender. Born of lowly origins in the Aosta Valley in Italy, Lazier claimed his last name to be a corruption of the surname Laskaris, an imperial dynasty of the Byzantine Empire. Also claiming connections to the Angelos, Komnenos and Palaiologos dynasties as their supposed last legitimate descendant, Lazier claimed the style 'prince of the line of the empire of the east'. Through various noble titles, Lazier claimed to be the rightful ruler of a vast number of former territories of the Byzantine Empire, as well as of a selection of other eastern lands. He a