sentence: political influence seal of thomas de brantingham during the fourteenth century , and in particular during the reign of edward iii , several de brantinghams held great offices of the state , including ralph de brantingham , king 's chamberlain to edward iii from 1349 , and thomas de brantingham ( died 1394 ) , lord treasurer from 1369 to 1371 and bishop of exeter from 1370 until his death .