About William "Algernon" de Percy, 1st Baron
The title Baron Percy has been created several times in the Peerage of England. The first, in 1066, became extinct in 1299. The second, in 1299, became extinct in 1517. The third, in 1557, became extinct in 1670. The present creation was in 1722, by writ of summons.
1 Barons Percy, first Creation (1066)
2 Barons Percy (of Alnwick), second Creation (1299)
3 Barons Percy (of Alnwick), third Creation (1557)
4 Barons Percy, fourth Creation (1722)
 Barons Percy, first Creation (1066)
William de Percy, 1st Baron Percy (d. 1096)
Alan de Percy, 2nd Baron Percy (ca. 1069-1135)
William de Percy, 3rd Baron Percy (d. ca. 1150)
William de Percy, 4th Baron Percy (1112-1175)
Henry de Percy, 5th Baron Percy (d. 1198)
William de Percy, 6th Baron Percy (1193-1245)
Henry de Percy, 7th Baron Percy (1228-1272)
Henry de Percy, 8th Baron Percy (1273-1314) (1299 created Baron Percy of Alnwick)
 Barons Percy (of Alnwick), second Creation (1299)
Henry de Percy, 1st Baron Percy (1273-1314)
Henry de Percy, 2nd Baron Percy (1300-1351)
Henry de Percy, 3rd Baron Percy (1320-1368)
Henry Percy, 4th Baron Percy (1341-1408) (1377 created (1st) Earl of Northumberland)
until 1527 see: Earl of Northumberland (2nd to 5th)
 Barons Percy (of Alnwick), third Creation (1557)
see Earl of Northumberland, 7th - 11th
 Barons Percy, fourth Creation (1722)
This barony was created by error, when the 7th Duke of Somerset was called to Parliament in the barony Percy, which was believed to have been last held by his mother, Elizabeth. See this article for details.
Algernon Seymour, 1st Baron Percy, 7th Duke of Somerset (1684-1750)
Elizabeth Seymour, 2nd Baroness Percy (1716-1776)
Hugh Percy, 3rd Baron Percy, 2nd Duke of Northumberland (1742-1817)
Hugh Percy, 4th Baron Percy, 3rd Duke of Northumberland (1785-1847)
Algernon Percy, 5th Baron Percy, 4th Duke of Northumberland (1792-1865)
John James Hugh Henry Stewart-Murray, 6th Baron Percy, 7th Duke of Atholl (1840-1917)
John George Stewart-Murray, 7th Baron Percy, 8th Duke of Atholl (1871-1942)
James Thomas Stewart-Murray, 8th Baron Percy, 9th Duke of Atholl (1879-1957)
Hugh Algernon Percy, 9th Baron Percy, 10th Duke of Northumberland (1914-1988)
Henry Alan Walter Richard Percy, 10th Baron Percy, 11th Duke of Northumberland (1953-1995)
Ralph George Algernon Percy, 11th Baron Percy, 12th Duke of Northumberland (b. 1956)
Leigh Rayment's Peerage Page
Retrieved from "http://en.wikipedia.org/wiki/Baron_Percy"
Buried: Mount Joy, Jerusalem
Notes: Said to have accompanied Hugh d'Avranches, later Earl of Chester, from Normandy to England. See The Complete Peerage vol.X,p436.
Father: Geoffrey De PERCY
Mother: Margaret ?
Married: Emma De PORT
1. Alan De PERCY (2º B. Percy)
2. Walter De PERCY
3. William De PERCY (Abbot of Whitby)
4. Richard De PERCY
-------------------- In 1070 he was engaged on works connected with the rebuilding of York Castle after its destruction by the Danes and in 1072 he took part in the Conquerors expedition to Scotland.
In 1096 he set out on the first crusade and died and was buried at Mount Joy near Jerusalem. Following Williams dying wishes Sirralph Eversly a Knight carried his heart back to England and it was buried at Whitby Abbey.
William "Algernon" de Percy, 1st Baron's Timeline
Perci-En-Auge, Normandy, France
Of, Semar, Yorkshire, England
Kildale, North Riding, Yorkshire, England
Whitby, Yorkshire, England
Of, Whitby, Yorkshire, England
Of, Whitby, Yorkshire, England
Mount Joy, near Jerusalem, Palestine
May 16, 1931