VI's wife, Margaret of Anjou. In September 1470 he joined Warwick and Clarence in the invasion of England which restored Henry VI to the throne, and on 13 October bore the Sword of State before Henry in a procession to St Paul's. He was appointed Lord High Constable of England, and as such on 15 October tried and condemned for high treason by the same Earl of Worcester who had in 1462 condemned Oxford's own father and brother. In March 1471, he prevented Edward IV's army from landing in Norfolk, and was in command of the right wing at the Battle of Barnet on 14 April of that year, defeating the forces of Lord Hastings. However, this early success in the battle turned to disaster when Oxford's forces began pillaging. Oxford led his men back to the fight, but: they lost their way in the fog and suddenly emerged on their own army, who mistook the Vere star for Edward's sun in splendour, and met them with a flight of arrows. Whereupon Oxford and his men cried "Treasoune! treasoune" and fled. After this defeat Oxford escaped to Scotland with 40 men, accompanied by his two brothers, George and Thomas Vere, and the Viscount Beaumont. From there he went to France, where he collected ships and engaged in privateering. Although he was not attainted after leaving England in 1471, his lands were confiscated, and his wife, Margaret, is said to have been subjected to great financial hardship. On 28 May 1473, Oxford attempted an unsuccessful landing at St Osyth in Essex. On 30 September 1473, he seized St Michael's Mount in Cornwall, where he was besieged for some months by John Fortescue. After most of his men had deserted and he had been wounded in the face with an arrow, Oxford was eventually compelled to surrender on 15 February 1474, along with his two brothers and Beaumont. Oxford was imprisoned at Hammes Castle near Calais, and was attainted early in 1475. At this time his mother, the 12th Earl's widow, was forced to surrender her property to the Duke of Gloucester. In 1478 Oxford scaled the walls of Hammes and leapt into the moat, though whether this was an attempt at escape or suicide is unclear. The new king, Richard III, ordered his transfer to England on 28 October 1484, but before the transfer could be effected Oxford had escaped, having