The king and the chancellor were the best of friends, almost inseparable, until an irrevocable rift evolved between them. What caused their deadly quarrel? Was it politics? Was it position? Was it pride? The dramatic story of the 12th century quarrel between Henry, King of England, and Thomas Becket, Archbishop of Canterbury, has echoed down through the ages. It is sometimes told as a close friendship gone bad, sometimes as a morality tale of pride,...