High Quality Content by WIKIPEDIA articles! Robert I (15 August 866 – 15 June 923), King of Western Francia (922–923), was the younger son of Robert the Strong, count of Anjou, and the brother of Odo, who became king of the Western Franks in 888. West Francia evolved over time into France; under Odo, the capital was fixed on Paris, a large step in that direction. His family is known as the Robertians.