Much of Håkan Rydving's work deals in one way or another with the influence of Christianity on the Saami-peoples. In my paper I explore how Constantine promoted Christianity through his time as emperor in the laws he issued. It is my argument, that Constantine really did nothing - or very little - that was without precedent, but that his careful method and his longevity as ruler was among the reasons for his success in creating the beginnings of a Christian Empire.