Gnaeus Domitius Calvinus

Gnaeus Domitius Calvinus was a Roman general, senator and consul (both in 53 BC and 40 BC) who was a loyal partisan of Caesar and Octavianus.

Domitius Calvinus came from a noble family and was elected consul in 53 BC, despite a notorious electoral scandal. He was on Caesar’s side during the Civil War with Pompey. At the decisive battle of Pharsalus he commanded the center of Caesar’s army. After the battle he became governor of Asia. He tried to oppose the invasion of Pharnaces, the king of Bosphorus, who had taken the occasion of the Roman civil war to invade the province of Pontus; however he suffered a crushing defeat at the battle of Nicopolis in Armenia (December of 48 BC). Direct intervention by Caesar brought a quick end to the conflict, and Pharnaces' army was annihilated at Zela in 47 BC. Despite this failure, he remained a trusted friend of Caesar.

Domitius Calvinus's activities after the death of Caesar are unknown, but in 43 BC he was a strong supporter of Octavianus and participated in the civil war against Brutus and Cassius. During the Philippi campaign in 42 BC, he had to bring reinforcements from Italia to Greece for Mark Antony and Octavianus' army, however his fleet was destroyed by the enemy in the Ionian Sea with the loss of two legions. Despite this defeat he was awarded the honor of a second consulship in 40 BC and was sent by Octavianus as governor to Hispania, where he remained for three years (39 BC-36 BC). Apparently, his military activities in Spain had success, since he was saluted as imperator by his troops and on his return he was awarded a triumph. He also rebuilt the Regia in the Roman Forum. Although we do not have many facts concerning his further political activities, an inscription shows that in 20 BC he was still alive and a member of the important Arval Brethren priesthood, reserved only for members of the nascent Imperial family and to the emperor's most distinguished supporters.

...
Wikipedia