The main interest of the history, of the family of, Mortimer lies in its political aspects. After brief attempts at feudal rebellion in 1088 and 1155, and association with the, baronialists in 1258-69, the family reverted powerfully and decisively to the royalist aide in, the person of Roger [II], who rendered, possible its triumph at Evesham by his collaboration in, the escape of prince-Edward from Hereford on the 28th May, 1265. The, careers of his son, Roger [III), of Chirk, and grandson, Roger [IV], represent the culmination of the political aspirations of the family. Their breach with the Crown' was occasioned by the attacks of the younger Despenser upon their position in the Welsh March before 1321. After the ultimate failure of their first attempt to overthrow the Despensers in that year, the, political activities of, Mortimer of Wigmore were renewed to an excesive degree after his escape from the, Tower in August 1323. In association with queen Isabella, he invaded the realm. in September 1326, and secured the execution of both Despensers. The-predominant feature of the "revolution", thus effected was its almost wholly, personal characters involving no deep or permanent changes in national policy. Roger's arrogance and ostentation, symbolised, by his promotion to the earldom of March in October, 1328, and his merciless attack on the earl of Kent in 1330, provoked a reaction which ended in his attainder and execution.