Edward III was the son of Edward II and King of England from 1327 to 1377. Edward III was crowned King at the age of fourteen and assumed government in his own right in 1330. In 1337, Edward created the Duchy of Cornwall to provide the heir to the throne with an income independent of the sovereign or the state. An able soldier, and an inspiring leader, Edward founded the Order of the Garter in 1348. At the beginning of the Hundred Years War in 1337, actual campaigning started when the King invaded France in 1339 and laid claim to the throne of France. Following a sea victory at the Battle of Sluys in 1340, Edward overran Brittany in 1342 and in 1346 he landed in Normandy defeating the French King, Philip IV, at the Battle of Crecy and his son Edward (the Black Prince) repeated his success at Poitiers in 1356. By 1360 Edward controlled over a quarter of France. His successes consolidated the support of the nobles, lessened criticism of the taxes, and improved relations with Parliament.
However, under the 1375 Treaty of Bruges the French King, Charles V, reversed most of the English conquests; Calais and a coastal strip near Bordeaux were Edward's only lasting gain. Failure abroad provoked criticism at home. The Black Death plague outbreaks of 1348 to 1349, 1361 to 1362 and 1369 inflicted severe social dislocation (the King himself losing a daughter to the plague) and caused deflation; severe laws were introduced to attempt to fix wages and prices. In 1376, the 'Good Parliament' attacked the high taxes and criticised the King's advisers. The ageing King withdrew to Windsor for the rest of his reign, eventually dying at Sheen Palace, Surrey. Research Edward III