Sir William Plumpton was born about 1365 in Spofforth, Yorkshire, England to Sir Robert Plumpton, Constable of Knaresborough Castle and Isabella le Scrope. He married Alice Gisburn, daughter of John Gisburn, Mayor of York and Ellen on about 1382 in York, Yorkshire, England. They had six sons and three daughters:
1. Sir Robert Plumpton
2. William Plumpton
3. Brian Plumpton
4. George Plumpton (cleric)
5. Thomas Plumpton
6. Richard Plumpton
7. Isabel Plumpton, wife of Stephen Thorpe and William Bukton
8. Katherine Plumpton, wife of Mr. Zouche
9. Jane Plumpton
Sir William Plumpton was involved in the failed Northern Rising against King Henry IV, who had recently supplanted King Richard II in a suspicious manner. This rebellion was lead by Richard le Scrope, Archbishop of York and uncle Sir William Plumpton. Richard le Scope was supported by Henry Percy, 1st Earl of Northumberland, who initially supported Henry IV but in 1403 turned against him in favor of Edmund Mortimer, 5th Earl of March, conspiring with Owain Glyndwr against King Henry. The three parties signed the Tripartite Indenture, where upon the overthrow of King Henry IV, England was to be divided up between them: Glyndwr was to receive Wales and a large part of western England; Northumberland was to receive all of northern England as well as Northamptonshire, Norfolk, Warwickshire, and Leicestershire. The Mortimers were to receive the remainder of England below the river Trent.
In 1405, Northumberland, joined by Lord Bardolf, failed to capture Ralph Neville, 1st Earl of Westmorland, which set the stage for the next failed attempt which ultimately led to Sir William Plumpton's demise.
On May 27, 1405, Le Scrope together with Thomas de Mowbray, 4th Earl of Norfolk and Sir William Plumpton assembled a force of 8000 men on Shipton Moor. However, rather than go into battle, Scrope parleyed with Westmorland. Scope, believing that his demands would be accepted and his personal safety guaranteed, disbanded the army and on May 29, Scrope, Mowbray, and Plumpton were arrested and taken to Pontefract Castle in Yorkshire to await King Henry IV, who arrived on June 3, 1405. The king denied the three trial, and a commission headed by the Earl of Arundel and Sir Thomas Beaufort sat in judgement of them in Scrope's own hall at his manor of Bishopthorpe, three miles south of York. They were all sentenced to death for treason and taken to a field belonging to the nunnery of Clementhorpe, which lay just under the walls of York. Before a great crowd they were beheaded on June 8, 1405. Scrope requested the headsman deal him five blows in remembrance of the five woulds of Christ.
Sources:
From wikipedia: https://en.wikipedia.org/wiki/Richard_le_Scrope
Notes below are from https://www.geni.com/people/Sir-William-Plumpton-Kt/6000000001743967433
Father of Robert, Thomas, Isabella, Bryan, Katherine, Jane, George, William, and Richard
Brother of Alice and Joan
Half brother of Joan
Note: "William suffered death on the scaffold in 1405 for taking part in an insurrection stirred up by his uncle Richard, archbishop of York, whose sister his father had married. He is described by a contemporary historian as a brave and daring Knight."
Note 2: Archbishop of York Richard le Scrope led a failed rebellion against Henry IV in northern England (1405). Scrope and other rebel leaders were executed. This was the second of three attempts to overthrow Henry IV lead by Henry Percy, Earl of Northumberland and his allies. Percy again fled to Scotland as he had after his defeat at the Battle of Shrewsbury (1403). [Percy Rebellion (1402–1408): three attempts by the Percy family and their allies to overthrow Henry IV]
Father: Robert Plumpton
Mother: Isabella Scrope
Marriage 1 Alice Gisburn
Children
Robert Plumpton b: 1383
Richard Plumpton
George Plumpton
Thomas Plumpton
Bryan Plumpton
Isabell Plumpton
Katherin Plumpton
Sources:
Title: Coat of Arms Sutliff, Sutliffe, or Sutcliffe
Author: Compilation: Samuel Milton Sutliff, Jr. (1909); Donald D. Sutliff; Bennett Hurd Sutliff
Publication: 1995
Note: Not clear who published the final manuscript.
Note: A monumental work.
Repository:
Note: Donald D. Sutliff, 605 SE 98th Ave., Vancouver, WA 98664 Phone 1-360-892-0949
Media: Book
Page: 36
William PLUMPTON, [SIR KNIGHT]
Born: 1362 - Of, Plumpton, Yorkshire, England
Marr: 1381/1382 - Of, York, Yorkshire, England
Died: 8 Jun 1405 -
Father: Robert PLUMPTON
Mother: Isabella SCROPE
Other Spouses:
Wife
Alice GISBURN
Born: ABT 1364 - Of, York, Yorkshire, England
Died: 1424 -
Father: John De GISBURN
Mother: Ellen
Other Spouses:
Children
1. Robert PLUMPTON
Born: 1383 - Of, Plumpton, Yorkshire, England
Marr: 1392 - Alice FOLJAMBE (other spouses)
Died: 8 Dec 1421 - 2. Thomas PLUMPTON
Born: ABT 1385 - Of, Plumpton, Yorkshire, England
Died: 18 Jul 1420 - 3. William PLUMPTON
Born: 1387 - Plumpton, Yorkshire, England
Died: - 4. Richard PLUMPTON
Born: 1389 - Plumpton, Yorkshire, England
Died: 1443 - 5. George PLUMPTON, [REVEREND]
Born: ABT 1392 - Of, Bingham, Nottinghamshire, England
Died: 1451 - 6. Bryan PLUMPTON
Born: ABT 1395 - Of, Plumpton, Yorkshire, England
Died: 1424 - 7. Jane PLUMPTON
Born: ABT 1397 - Of, Plumpton, Yorkshire, England
Marr: - William MALLORY, [Sir Knight]
Died: - 8. Isabella PLUMPTON
Born: ABT 1400 - Of, Plumpton, Yorkshire, England
Marr: 1425 - Stephen THORPE (other spouses)
Died: - 9. Katherine PLUMPTON
Born: ABT 1403 - Of, Plumpton, Yorkshire, England
Marr: - Gilbert DABENHAM, (Sir) (other spouses)
Died: 1463 -
http://www.boydhouse.com/Darryl_data/gp1278.html
Om Sir William Plumpton, Kt. (Norsk)
Sir William av Plumpton, ridder
Williiam døde på skafottet i 1405 for å deltatt i et opprør pisket opp av hans onkel Richard, erkebiskopen av York, bror av hans mor.
William er beskrevet av en moderne historiker som en modig og dristig ridder."
Erkebiskop av York Richard le Scrope ledet et mislykket opprør mot Henrik IV i Nord-England (1405). Scrope og andre opprørsledere henrettet. Dette var det andre av tre forsøk på å styrte Henrik IV ledet av Henry Percy, jarlen av Northumberland og hans allierte. Percy flyktet igjen til Skottland etter hans tap i slaget av Shrewsbury (1403).