In 1557 the English army under the Earl of Pembroke did not arrive in time for the battle of St Quentin, but played a significant role in the capture of the city that followed. Pembroke was Mary's most effective commander at the war with France. Mary sometimes suspected Pembroke's loyalty, but he was employed as governor of Calais, as president of Wales and in other ways. He was also to some extent in the confidence of Philip II of Spain. The earl retained his place at court under Elizabeth I until 1569, when he was suspected of favouring the projected marriage between Mary, Queen of Scots, and the duke of Norfolk.