Duchy of Cornwall from Duchy income, assisted by Grants-in-aid from the Queen. If there is no duke (for example, if the monarch does not have any male children) the duchy income reverts to the monarch and the annual Sovereign Grant is reduced annually by the amount of the duchy's income. The duchy was established on 17 March 1337 by the Royal Great Charter out of the former Earldom of Cornwall by Edward III for his son, Edward, Prince of Wales, the "Black Prince", who became the first Duke of Cornwall. The charter established that the Duke of Cornwall is to be the eldest
The Black Prince (play) The Black Prince (play) The Black Prince is a Restoration era stage play, a historical tragedy written by Roger Boyle, 1st Earl of Orrery. It premiered on stage in 1667 and was first published in 1669. The play relied on influences from contemporaneous French theatre, and contributed to the evolution of the subgenre of heroic drama; yet it also looked back to the Caroline era to assimilate masque-like dramatic effects. As its title indicates, the play deals with the historical career of Edward, the Black Prince and his defeat and capture of King John II of France at the Battle