Roger de Breos was a notable figure in medieval England, known for his role as a nobleman and landowner. He was a member of the de Breos family, which held significant estates in Wales and England during the 12th century. His lineage can be traced back to the Norman Conquest, which brought many Normans to England, including the de Breos family. Roger de Breos is often associated with the Marcher Lords, who were powerful nobles responsible for defending the borderlands between England and Wales. His influence and landholdings contributed to the political landscape of the time, as he navigated the complexities of feudal loyalty and territorial disputes.