5 year truce, which he would do at Vaucelles in February 1556. During 1556 however, he would lose his governorship of the capital to François de Montmorency, who Henri had promised Anne would receive it. Resumption of hostilities With war resumed in late 1556, Coligny made an abortive surprise attack on Douai on 6 January, timed to coincide with the feast of Epiphany. With this a failure, he changed course, sacking Lens, Pas-de-Calais, ravaging the frontier and returning with plunder. Henri, frustrated at the timing of the attack, ordered Coligny to return prisoners and goods taken in the raid on 17 January, much to the Admirals anger. In 1557 he was entrusted with the defence of Saint-Quentin which was besieged by a Spanish army that had come down from Flanders. With the crushing defeat of the relief army under Montmorency at the battle of Saint-Quentin Coligny assured the king he had supplies to hold the town for eight weeks. However 9 days later on 29 August, the Spanish would break the towns defences, and he was imprisoned in the stronghold of L'Ecluse. His brother Francois de Coligny d'Andelot had also been among the towns defenders however he managed to escape. The king harshly criticised Coligny for failing to hold the town for longer. The condition of his imprisonment was harsh, the dampness and cold leaving him ill. On payment of a ransom of 50,000 crowns he recovered his liberty. Coligny and Calvinism Throughout this period, Protestantism was beginning to find converts in the upper echelons of the French aristocracy. Coligny's brother Andelot was an early convert, bringing the faith back with him from his captivity in Milan in 1556. He would not however be open in his newfound faith until attending services in 1558. In 1558, while imprisoned in Flanders, Andelot sent a Protestant devotional book, as a way to console his brother during his time in captivity. The timing of Coligny's conversion to Calvinism is unclear, but by September 1558 he had received a letter about his salvation from Calvin. The priest Viret spoke highly of Coligny, praising him as a man of Christian virtue. Coligny's religious allegiance was suspect at court by 1559, the English ambassador noting his absence at Mass. For the moment though Coligny maintained public silence on the matter. Reign of Francis II Amboise Following the sudden death of Henri, at a joust to commemorate