 His mother's children by her first marriage to Louis VII of France were Marie of France, Countess of Champagne and Alix of France.He had one elder brother, William IX, Count of Poitiers (d. 1156), and his younger siblings included Matilda; Richard; Geoffrey; Eleanor; Joan; and John.In June 1170, the fifteen-year-old Henry was crowned king during his father's lifetime, something originally practised by the French Capetian dynasty and adopted by the English kings Stephen and Henry II.