REF: "Falls the Shadow" Sharon Kay Penman: On April 3, 1264 King Henry leads his Red Dragon Standard & Army for Northampton, where most of Simon de Montfort's forces are. April 4, 1264 they arrive at Northampton & confer with Prince Edward (the real leader of the Royalist forces) for a strategy session, those present included Philip Basset (whose son-in-law Sir Hugh le Despenser was an ally of Simon's), Humphrey de Bohun V the Earl of Hereford whose son Humphrey de Bohun VI was with Simon, Hugh le Bigod there & his step son Baldwin Wake was with Simon. Daffydd ap Gruffydd was also there, as he continued to be in exile in England, aliied with Prince Edward against his own brother Llywelyn ap Gruffydd.