Philippa of Hainault (sometimes spelled Hainaut; Middle French: Philippe de Hainaut; 24 June 1310 (or 1315) – 15 August 1369) was Queen of England as the wife and political adviser of King Edward III. She acted as regent in 1346, when her husband was away for the Hundred Years' War. Daughter of Count William of Hainaut and French princess Joan of Valois, Philippa was engaged to Edward, Prince of Wales, in 1326. Their marriage was celebrated in York Minster on 24 January 1328, some months after Edward's accession to the throne of England and Isabella of France's infamous invasion. After her husband reclaimed the throne, Philippa influenced King Edward to take interest in the nation's commercial expansion, was part of the successful Battle of Neville's Cross, and often went on expeditions to Scotland and France. She won much popularity with the English people for her compassion in 1347, when she successfully persuaded the King to spare the lives of the Burghers of Calais. This popularity helped maintain peace in England throughout their long reign. Childhood Philippa was born on 24 June c.1310/15, in Valenciennes, Low Countries. She was one of eight children and the second of five daughters born from William I, Count of Hainaut, and Joan of Valois, granddaughter of King Philip III of France. The Royal House of Valois was a cadet branch of the Capetian Dynasty, also known as the House of France. King Edward II decided that an alliance with Flanders would benefit England and sent Bishop Stapledon of Exeter on the Continent as an ambassador. On his journey, he crossed into the county of Hainaut to inspect the daughters of Count William of Hainaut, to determine which daughter would be the most suitable as an eventual bride for young Prince Edward. The bishop's report to the King describes one of the Count's daughters in detail. A later annotation says it describes Philippa as a child, but historian Ian Mortimer argues that it is actually an account of her older sister Margaret. The description runs: Growing up in the Low Countries in the period when this region was growing into a major trading centre, Philippa was well versed in finances and diplomacy. Her older sister Margaret succeeded their brother William II, Count of Hainaut, upon his death in battle. The counties of Holland, Zeeland and the seigniory of Frisia were devolved to Margaret after agreement between