I am examining the cultural transformation which took place in medieval Normandy after 911, when the pagan Vikings who had raided the territory for roughly a century converted and became the region's rulers. Their conversion was key to the Normans' political power, which increased quickly and by 1066 enjoyed papal approval. As the Normans came to play a central role in European history from the conquest of England to the First Crusade, an understanding of their identity as it evolved from 911 is crucial. The nature of their cultural transformation, however, is not at present understood. I aim to illuminate this process through an examination of a virtually untapped body of sources that reflect it, namely hagiography concerning the region's traditional saints.