Chapter 7 is focused on conversions in a family context, collecting and comparing evidence from Gaul, Hispania, and Italy. The starting point is an examination of the secular and ecclesiastical rules governing interdenominational marriages and the differences in church loyalty between parents and children. Then the conclusions drawn from the normative sources are connected with what we know about the social reality of ‘mixed’ families. Given the nature of our evidence, the chapter focuses primarily on marriages and conversions in royal contexts. It analyses the examples from the ruling house of Suevi, marriages in the Burgundian family of Gibichungs, and marriages between the Visigothic and Frankish ruling families.