History of the English penny (1154–1485) that inscription, while ones produced by the London and Calais mints were inscribed . During the post-treaty period the Durham and York mints became "ecclesiastical mints", under the authority of the local bishop or archbishop, and thus a source of money for the Church. Typical inscriptions of this period are – "Edward King of England and France". Edward III's son, the Black Prince died in 1376, a year before his father, which meant that the next king was Edward's eleven-year-old grandson Richard II (1377–1399). England continued to lay claim to France, and remained at war until 1396; high taxation to
Edward the Black Prince In order to attach John, Duke of Brabant, to his cause, the king in 1339 proposed a marriage between the young Duke of Cornwall and John's daughter Margaret, and in the spring of 1345 wrote urgently to Pope Clement VI for a dispensation for this marriage. On 12 May 1343, Edward created the duke Prince of Wales, in a parliament held at Westminster, investing him with a circlet, gold ring, and silver rod. The prince accompanied his father to Sluys on 3 July 1345, and Edward tried to persuade the burgomasters of Ghent, Bruges, and Ypres to accept his son