Constans I, the youngest son of Constantine the Great and Fausta, became emperor with two brothers upon his father`s death in A.D. 337, and was given control of Italy, Ilyria and Africa. Constans I defeated the Franks who were invading the Roman province of Gaul, and he repelled the Picts and Scots from Britain - restoring peace to that province after many years of bloodshed. Constans I was murdered in A.D. 350 by cohorts of the rebel Magnentius.