Why was it important for Clovis to convert to Christianity?

Clovis converted to Catholicism. It is thought that Catholicism served to distinguish him from other Germanic kings who were Arian Christians and that it helped him to gain support from the Catholic Gallo-Roman aristocracy after he defeated a Gallo-Roman ruler to expand into Roman Gaul further. His conversion alienated some of the Frankish sub-kings and weakened his military strength for a while, but then they also converted to Catholicism.