 Complete the following phrase:  Upon the death of his brother in 1422, Humphrey became Lord Protector to his young nephew Henry VI. He also claimed the right to the regency of England following the death of his elder brother, John, Duke of Bedford, in 1435. Humphreys claims were strongly contested by the lords of the kings council, and in particular his half-uncle, Cardinal Henry Beaufort. Henry Vs will, rediscovered at Eton College in 1978, actually supported Humphreys claims. In 1436 Philip, Duke of Burgundy, 