Judicael Berengar was a notable figure in the medieval period, specifically known for his role as a noble in the region of Brittany. He lived during the 10th century and was part of the Breton nobility, which played a significant role in the political landscape of the time. His lineage is often associated with the establishment of local power structures in Western France. He is recognized for his contributions to the consolidation of Breton identity and governance. His actions and alliances helped shape the region's history, particularly in relation to the broader conflicts involving the Normans and the Frankish kingdoms.