marriage Edward I mobilised another army for the Scottish campaign in 1307, which Prince Edward was due to join that summer, but the elderly king had been increasingly unwell and died on 7 July at Burgh by Sands. Edward travelled from London immediately after the news reached him, and on 20 July he was proclaimed king. He continued north into Scotland and on 4 August received homage from his Scottish supporters at Dumfries, before abandoning the campaign and returning south. Edward promptly recalled Piers Gaveston, who was then in exile, and made him Earl of Cornwall, before arranging his marriage to the wealthy Margaret de Clare. Edward also arrested his old adversary Bishop Langton, and dismissed him from his post as treasurer. Edward I's body was kept at Waltham Abbey for several months before being taken for burial to Westminster, where Edward erected a simple marble tomb for his father. In 1308, Edward's marriage to Isabella of France proceeded. Edward crossed the English Channel to France in January, leaving Gaveston as his custos regni in charge of the kingdom. This arrangement was unusual, and involved unprecedented powers being delegated to Gaveston, backed by a specially engraved Great Seal. Edward probably hoped that the marriage would strengthen his position in Gascony and bring him much needed funds. The final negotiations, however, proved challenging: Edward and Philip IV did not like each other, and the French king drove a hard bargain over the size of Isabella's dower and the details of the administration of Edward's lands in France. As part of the agreement, Edward gave homage to Philip for the Duchy of Aquitaine and agreed to a commission to complete the implementation of the 1303 Treaty of Paris. The pair were married in Boulogne on 25 January. Edward gave Isabella a psalter as a wedding gift, and her father gave her gifts worth over 21,000 livres and a fragment of the True Cross. The pair returned to England in February, where Edward had ordered Westminster Palace to be lavishly restored in readiness for their coronation and wedding feast, complete with marble tables, forty ovens and a fountain that produced wine and pimento, a spiced medieval drink. After some delays, the ceremony went ahead on 25 February at Westminster Abbey, under the guidance of Henry Woodlock, the Bishop of Winchester. As part of the coronation, Edward swore to uphold "the rightful laws and