History of the Franks by Gregory of Tours

This is a useful primary source, there are numerous translations in the ic. It is a history by a Christian Bishop covering Frankish history and gives good detail on the life of Clovis and his conversion to Catholicism and his impressions of it. It is bias, due to Gregory re-ordering the dates of some events to put Clovis in the light of a more pious convert, but nevertheless it is one of the most detailed portrtaits of a barbarian kings conversion available to us.