Henry Percy

  Noted events in his life were:

• source. Mary-Ann [send2maryann@gmail.com] who writes:
Henry Percy, 1st Earl of Northumberland, was the son of Henry de Percy, 3rd Baron Percy, and the father of Henry "Harry Hotspur" Percy. His mother was Mary of Lancaster, daughter of Henry Plantagenet, 3rd Earl of Leicester, son of Edmund Crouchback, son of Henry III of England.
Originally a follower of Edward III of England, for whom he held high offices in the administration of northern England, Henry Percy went on to support King Richard II. He was given the title of Marshal of England and created an Earl at Richard`s coronation (1377), but he switched to the side of Henry Bolingbroke (later, Henry IV) after King Richard II created his chief rival, Ralph Neville, 1st Earl of Westmorland in 1399.
On King Henry IV`s coronation he was appointed Constable of England and granted the lordship of the Isle of Man. However in 1403 Percy turned against Henry IV in favour of Edmund Mortimer, 5th Earl of March, and then conspired with Owain Glynd against King Henry.
The Percy rebellion failed at the Battle of Shrewsbury but, since Henry Percy senior did not directly participate, he lost his office as Constable as a result but was not convicted of treason. But in 1405 Percy supported Richard le Scrope, Archbishop of York, in another rebellion, after which Percy fled to Scotland, and his estates were confiscated by the King.
In 1408 Percy invaded England in rebellion once more and was killed at the Battle of Bramham Moor.
Northumberland is a major character in Shakespeare`s Richard II, Henry IV, part 1, and Henry IV, part 2.
His position as a character in the Shakespearean canon inspired the character of Lord Percy Percy, Duke of Northumberland in the historical sitcom The Black Adder, set during the very late Plantagenet era.