the war in France and misrule of the country. Starting in 1453, Henry had a series of mental breakdowns, and tensions mounted between Margaret and Richard of York over control of the incapacitated King's government and over the question of succession to the English throne. Civil war broke out in 1455, leading to a long period of dynastic conflict now known as the Wars of the Roses. Henry was deposed on 4 March 1461 by Richard's son, who took the throne as Edward IV. Despite Margaret continuing to lead a resistance to Edward, Henry was captured by Edward's forces in 1465 and imprisoned in the Tower of London. Henry was restored to the throne in 1470 but Edward retook power in 1471, killing Henry's only son and heir-apparent, Edward of Westminster, in battle and imprisoning Henry once again. Having "lost his wits, his two kingdoms and his only son", Henry died in the Tower during the night of 21 May 1471, possibly killed on the orders of King Edward IV. He was buried at Chertsey Abbey, before being moved to Windsor Castle in 1484. Miracles were attributed to Henry after his death and he was informally regarded as a saint and martyr until the 16th century. He left a legacy of educational institutions, having founded Eton College, King's College, Cambridge, and (together with Henry Chichele) All Souls College, Oxford. Shakespeare wrote a trilogy of plays about his life, depicting him as weak-willed and easily influenced by his wife, Margaret. Child king Henry was born on 6 December 1421 at Windsor Castle, the only child and heir-apparent of King Henry V. Succeeding to the throne as King of England at the age of nine months on 1 September 1422, the day after his father's death; he remains the youngest person ever to succeed to the English throne. On 21 October 1422, in accordance with the Treaty of Troyes of 1420, he became titular King of France upon his grandfather Charles VI's death. His mother, the 20-year-old Catherine of Valois, was viewed with considerable suspicion by English nobles as Charles VI's daughter. She was prevented from playing a full role in her son's upbringing. On 28 September 1423, the nobles swore loyalty to Henry VI, who was not yet two years old. They summoned Parliament in the King's name and established a regency council to govern until the King should come of