Marco Angelo Flavio Comneno (Latin: Marcus Angelus Flavius Comnenus;[1] 1608–1679?)
was according to the official reconstruction of the Sacred Military Constantinian Order of Saint George the grand master of the order from 1678 to 1679, though the historicity of his tenure as grand master has been questioned on the basis that he might in actuality have predeceased his supposed predecessor, his older brother Angelo Maria Angeli.
The modern Constantinian Order attributes Marco the titular titles previously used by his older brother; "Prince of Macedonia and Thessaly" and "Duke and Count of Drivasto and Durazzo".
[3] In the mid-15th century, Michele's uncles Andrea and Paolo were officially acknowledged as descendants of the Angelos emperors by Pope Paul III (r. 1534–1549) and founded the Sacred Military Constantinian Order of Saint George,[4][5] a chivalric order with invented Byzantine connections.
According to these reconstructions, Marco died in 1679 and also used the titles "Prince of Macedonia and Thessaly" and "Duke and Count of Drivasto and Durazzo".