Galerius

Galerius was Roman Emperor from 305 to 311. During his reign he campaigned, aided by Diocletian, against the Sassanid Empire, sacking their capital Ctesiphon in 299. He also campaigned across the Danube against the Carpi, defeating them in 297 and 300. Although he was a staunch opponent of Christianity, Galerius ended the Diocletianic Persecution when he issued an edict of toleration in 311.

Galerius was born in Serdica, though some modern scholars consider the strategic site where he later built his palace named after his mother Felix Romuliana his birth and funeral place. His father was a Thracian and his mother Romula was a Dacian woman, who left Dacia because of the Carpians attacks.19 He originally followed his fathers occupation, that of a herdsman, where he got his surname of Armentarius .

Source: Wikipedia