 It had long been established Marcher custom to solve conflicts through private warfare . Hereford 's problem , however , was his relative weakness in the Marches , and now he was facing open conflict with two different enemies . He therefore decided to take the issue to the king instead , in a break with tradition . King Edward again ordered Gloucester to stop , but the earl ignored the order and initiated raids on Hereford 's lands . Hostilities continued and Hereford responded , until both earls were arrested and brought before the king . The real offense was not the private warfare in itself , but the fact that the earls had not respected the king 's injunction to cease . In the parliament of January 1292 , Gloucester was fined 10 @,@ 000 marks and Hereford 1 @,@ 000 . Gloucester 's liberty of Glamorgan was declared forfeit , and confiscated by the crown , as was Hereford 's of Brecon . 
