1254 Archeology Cantiana Vol XII pg 203 - SAC pg114 - Henry de Berham son of Gilbert paid the aid assessed upon his lands at Barham (Kent) (that is half a Knight's fee held of the Archbishop of Canterbury) at the knighting of Prince Edward in 1254.
1264 Roberts cal gen vol I pg 246 - SAC pg114 - Henry de Bereham was implicated in Simon de Montfort's rebellion in 1264 and died before 1276. Richard de Bereham (probably Henry's uncle) was an adherent of the Earl of Leicester
In 1272, King Henry III died and Edward I "Longshanks" was crowned.