Answer:
Explanation: what are the choices
I think it's David G. Farragut, I just researched.
Civil wars. Probably the most important single cause of Byzantium's collapse was its recurrent debilitating civil wars. Three of the worst periods of civil war and internal infighting took place during Byzantium's decline.
These states are Turkey, Syria, and Greece
Antigonid dynasty was a dynasty of Hellenistic kings descended from Alexander the Great's general Antigonus I Monophthalmus. his attempt to establish control of the whole Alexandrian empire led to his defeat and death at the battle of Ipsus. His sons were only able to establish authority over Macedonia for a short time, until the mighty Rome came into power.
