"Marcus (Latin: Flavius Marcus Augustus) (died 476/477) was the son of the East Roman or Byzantine general and usurper Basiliscus, and Zenonis. He was acclaimed Caesar ...
in 475 and later promoted to Augustus, ruling as junior co-emperor to his father. When Zeno reoccupied Constantinople in late August 476, Marcus, with his parents, took refuge in a church. Zeno promised not to spill their blood, so he exiled them to Limnae in Cappadocia and subsequently starved them to death." - (en.wikipedia.org 21.06.2020)