Vetranio, was an experienced soldier and officer asked by Constantina, the sister of Roman Emperor Constantius II, to proclaim himself Caesar. Her brother Constans had been killed by Magnentius earlier that year and she probably thought Vetranio could protect her family and herself against the usurper. Vetranio accepted, and coins were minted in his name. Constantius first seemed to accept the new Emperor but eventually moved against him. He was however allowed to live the remainder of his years as a private citizen on a state pension, after he agreed to stand down.