This Day in History: 1419-02-01

On 1st February 1419, Robert Waterton, Constable of Pontefract Castle, took charge of Arthur de Richemont, brother of John V, Duke of Brittany, who had been captured at Agincourt. Arthur was released by the English in 1420 and later became Duke of Touraine, Constable of France (fighting alongside Joan of Arc) and, briefly, Duke of Brittany.