Thomas Berkeley was imprisoned in Pevensey Castle but released on 16 October 1326. He was made joint custodian of the deposed Edward II. His first wife was Margaret, daughter of Roger Mortimer, earl of March. He died 27 October 1361.
Island kingdom bounded to the west by the Marcher lordships and the (still contested) principality of Wales conquered by Edward I; English lordships included parts of modern south Wales (from southern Pembrokeshire through Swansea, Cardiff and on towards Gloucester in England); bounded to the north by the kingdom of Scotland, to the east by the North Sea and to the south by the Channel; included Somerset, Devon and Cornwall to the south-west. Population up to the Black Death of 1348-9 approximately 4 million souls.
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