Tensions between Edward and the barons remained high, and the earls opposed to the king kept their personal armies mobilised late into 1311. By now Edward had become estranged from his cousin, the Earl of Lancaster, who was also the Earl of Leicester, Lincoln, Salisbury, and Derby, with an income of around £11,000 a year from his lands, almost double that of the next wealthiest baron. Backed by the earls of Arundel, Gloucester, Hereford, Pembroke, and Warwick, Lancaster led a powerful faction in England, but he was not personally interested in practical administration, nor was he a particularly imaginative or effective politician.