Malcolm was brought up at the English court of Edward the Confessor after Macbeth murdered his father, Duncan I. With English assistance he defeated Macbeth in 1054, and killed him in 1057. Malcolm married (1068) Margaret, the granddaughter of Edmund II (Ironside). His support of Saxon exiles (including Edgar the Aetheling) fleeing from the Normans, led to an invasion (1072) by William I and Malcolm’s homage to him. Tension continued, and Malcolm was killed at Alnwick while on his fifth invasion of England.