Legio II Herculia
Legio II Herculia was a Roman legion, levied by Emperor Diocletian, possibly together with I Iovia, to guard the newly created province of Scythia Minor. It was stationed at Capidava. The cognomen of this legion came from Herculius, the attribute of Maximian meaning "similar to Hercules".
According to Notitia Dignitatum, at the beginning of the 5th-century, II Herculia was still in its camp on the Danube.