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DE PERCY Henry
Birth:          1320 of Alnwick Castle, Alnwick, Northumberland, England
Death:          18 May 1368 
Burial:         Alnwick, Northumberland, England

Notes
https://en.wikipedia.org/wiki/Henry_de_Percy,_3rd_Baron_Percy
Henry Percy, 3rd Baron Percy of Alnwick (c. 1321–1368), was the eldest son of Henry 
de Percy, 2nd Baron Percy (1301–1352), and his wife, Idonea, daughter of Robert de 
Clifford, 1st Baron de Clifford.

He served in France under the earl of Arundel in March 1344 and in August 1346 was 
at the Battle of Crécy. He then transferred to service in Gascony under the earl of 
Lancaster. In July 1352 he was made joint warden of the marches towards Scotland, 
and in September 1355 keeper of Roxburgh Castle and sheriff of Northumberland for 
two years.

In 1356 he took part in the invasion of Scotland that followed Edward Balliol's 
surrender of the kingdom and crown of Scotland to Edward III. In July 1356 he was 
once again joint warden of the marches and then took part in the negotiations that led 
to the treaty of Berwick of October 1357.

He participated in Edward III's military efforts in France and in September 1355 was 
marshal of the royal army at Calais. In 1360 he took part in Edward's campaign to 
capture Rheims.

He died on or about 18 May 1368, probably at his castle of Alnwick, and was buried in 
Alnwick Abbey. He had married twice: firstly Mary of Lancaster (d. 1362), daughter of 
Henry, 3rd Earl of Lancaster, and secondly Joan (d. 1368), the daughter and sole 
heiress of John, Lord Orreby. With his first wife he had two sons, Henry and Thomas. 
With his second wife he had a son who died in his father's lifetime and a daughter, 
Mary. He was succeeded by his eldest son Henry, who became the 1st earl of 
Northumberland. His younger son Thomas became the 1st Earl of Worcester.

Parents
DE PERCY Henry (6 Feb 1301 - 26 Feb 1352)
DE CLIFFORD Idonea (ABT 1300 - 24 Aug 1365)

Siblings
DE PERCY Henry (1320 - 18 May 1368)
DE PERCY Maud (ABT 1335 - BEF 18 Feb 1379)

Marriage To PLANTAGENET Mary "of Lancaster" (1320 - 1 Sep 1362) m. ABT Sep 1334 Tutbury Castle Notes Parents PLANTAGENET Henry (1281 - 22 Sep 1345) DE CHAWORTH Maud (2 Feb 1282 - 3 Dec 1322) Children by PLANTAGENET Mary "of Lancaster" 1320 - 1 Sep 1362
DE PERCY Henry (10 Nov 1341 - 20 Feb 1408)
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