 And Hawise was a part of an important dynastic double marriage for in 996, she married Geoffrey I, Duke of Brittany, while her brother Richard II, Duke of Normandy shortly afterwards married Geoffrey's sister Judith of Brittany.This double alliance between Normandy and Brittany, probably designed to safeguard both families, certainly functioned as such regarding Brittany.In 1008 when Geoffrey died leaving two young sons, Alan III and Eudo, Richard stepped in to protect them and played a major role in governing Brittany during their minority.