Marcellinus of Gaul also known as Marcellin was the first bishop of Embrun from 354 AD. He was of Berber origin born in North Africa. Marcellin, went to Rome with two other bishops of North Africa, Vincent and Domnin, to attend a synod in 313 to judge the Donatists movement. They met the then Pope, St. Miltiades and from him received a mission. They went to Nice, where they landed, they say, after taking advice of the bishops assembled in Arles, in 314. They went and preached the gospel to the inhabitants of Italian side of the Alps, from the shores of the sea to Vercelli, where Eusebius was chosen as bishop and where they separated.