Durand de Villegaignon over the site and financing of a new fort. Arran reluctantly agreed in July 1548 to Mary's marriage to Francis, eldest son of King Henry II of France. Henry II rewarded him by making him Duke of Châtellerault on 8 February 1549 and a knight of the Order of Saint Michael. On 19 April 1550 Regent Arran and his Privy Council made legislation about foodstuffs and rising prices. The people of Scotland were to reduce their diets and banqueting. Prices were set for wild birds and rabbits, swans would be 5 shillings, plovers 5 pence. River birds including herons and ducks were to be caught by hawking. It was forbidden to shoot deer or birds for the table with "half hag or culverin or pistolate". These acts were ratified by Parliament. Post-regency In 1554, Châtellerault, as he was now, surrendered the regency to Mary of Guise, and was appointed her lieutenant in Scotland. He gave up the regency on the condition that he would be Queen Mary's heir if she died childless. The Scottish succession, however, had been secretly promised to France. In the first months of the Scottish Reformation Châtellerault continued to support Mary of Guise. He faced a Protestant army with the French commander at Cupar Muir in June 1559. He changed his allegiance in August 1559, joining the Protestant Lords of the Congregation to oppose the regency of Mary of Guise, and lost his French dukedom as a result. In order to discredit him with the English government a letter was forged by his enemies, in which Châtellerault declared his allegiance to Francis II of France, but the plot was exposed. On 27 February 1560 he agreed to the Treaty of Berwick with Queen Elizabeth I of England, which placed Scotland under English protection. After the death of Mary of Guise on 15 June 1560, Châtellerault persuaded the Parliament of Scotland to back a plan to marry his son James to Elizabeth I, and then after the death of Francis II on 5 December 1560 he attempted, without success, to arrange for James to marry the young widowed Queen Mary. However, Mary married Lord Darnley in 1565. In 1566 Châtellerault withdrew to his estates in France, where he made vain attempts to regain his confiscated duchy. In 1569, he returned to Scotland in support of Mary but was imprisoned by Murray who assembled a