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Birth:          ABT 1312 Norfolk, England
Death:          7 Jul 1349 
Burial:         High Altar at Byland, Yorkshire, England

Notes
https://en.wikipedia.org/wiki/John_de_Mowbray,_3rd_Baron_Mowbray
https://en.wikipedia.org/wiki/Joan_of_Lancaster
Joan of Lancaster (c.1312 – 7 July 1349) sometimes called Joan Plantagenet after her 
dynasty's name, was the third daughter of Henry, 3rd Earl of Lancaster and Maud 
Chaworth.
Royal family ties[edit]

Joan of Lancaster was born circa 1312 at Grosmont Castle in Monmouthshire.[1] Her 
father was the son of Edmund Crouchback, 1st Earl of Lancaster and Blanche of 
Artois, Queen Dowager of Navarre, a granddaughter of Louis VIII of France and 
Blanche of Castile. Her paternal great-grandparents were Henry III of England and 
Eleanor of Provence. Joan was thus doubly descended from Henry II and Eleanor of 
Aquitaine.[2] Joan's mother was a half-sister of Edward II's favorite, Hugh le 
Despenser the Younger, through the remarriage of Maud's mother, Isabella de 
Beauchamp, to Hugh le Despenser, 1st Earl of Winchester.[3] Joan had one brother, 
Henry of Grosmont, 1st Duke of Lancaster, and five sisters, Blanche, Baroness Wake 
of Liddell, Isabel, Abbess of Amesbury, Maud, Countess of Ulster, Eleanor, Countess 
of Arundel and Warenne, and Mary, Baroness Percy.[4] Joan's niece, Elizabeth de 
Burgh, Countess of Ulster, married Lionel of Antwerp, Duke of Clarence, the second 
surviving son of Edward III and Philippa of Hainault, a marriage that would create a 
line of descent to strengthen the Yorkist claim to the throne in the Wars of the Roses.
[5] Another niece, Blanche of Lancaster, married the third surviving son of Edward III, 
John of Gaunt, and became the mother of the first Lancastrian king of England, Henry 
IV.[6]

Marriage and children[edit]

Joan married John de Mowbray, 3rd Baron Mowbray sometime between February and 
June 1327.[1][7] They had three children:[7]
Blanche de Mowbray (died 1409), who was married five times - first, to John de 
Segrave; second, to Robert Bertram; third, to Thomas Poynings; fourth, to Sir John 
Worth; and fifth, to Sir John Wiltshire.
Eleanor de Mowbray, who was married twice - first, to Roger La Warre, Lord La Warre; 
and second, to Sir Lewis de Clifford.
John de Mowbray, 4th Baron Mowbray (25 June 1340 – 1368), married Elizabeth de 
Segrave

Joan died in Yorkshire, England of the plague. She was interred at Byland Abbey in 
North Yorkshire.

Parents
PLANTAGENET Henry (1281 - 22 Sep 1345)
DE CHAWORTH Maud (2 Feb 1282 - 3 Dec 1322)

Siblings
PLANTAGENET Maud "of Lancaster" (ABT 1310 - 5 May 1377)
PLANTAGENET Eleanor (ABT 1311 - 11 Jan 1372)
PLANTAGENET Joan "of Lancaster" (ABT 1312 - 7 Jul 1349)
PLANTAGENET Mary "of Lancaster" (1320 - 1 Sep 1362)

Marriage To DE MOWBRAY John (29 Nov 1310 - 4 Oct 1361)
    m. ABT 1328 

Notes

Parents
DE MOWBRAY John (4 Sep 1286 - 23 Mar 1322)
BRAOSE Alivia (Alice) (ABT 1291 - BEF 30 Jul 1331)

Children by DE MOWBRAY John 29 Nov 1310 - 4 Oct 1361
DE MOWBRAY John (25 Jun 1340 - 17 Jun 1368)

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