Edward III gave the castle to his own son, Edmund of Langley, the Duke of York, who controlled it until 1402. Edmund's eldest son, Edward, owned it until 1415, when it passed to Maud Clifford, the widow of Edmund's younger son Richard, who lived there until 1446. Richard of York then inherited the castle, and on his death in 1460 during the Wars of the Roses it passed to his son Edward, who seized the throne in 1461, bringing Conisbrough back into Crown ownership once again.