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Philippa of Clarence
Philippa of Clarence
5th Countess of Ulster; 6th Baroness of Connaught
	Arms of Philippa, 5th Countess of Ulster
Born	16 August 1355; Eltham Palace, Kent, England
Died	5 January 1382 (aged 26); Cork, Ireland
Burial	Wigmore, Herefordshire, England
Spouse	Edmund Mortimer, 3rd Earl of March (m. 1369)
Issue; more...	Elizabeth Mortimer; Roger Mortimer, 4th Earl of March; Sir Edmund Mortimer; Lady Philippa Mortimer;
House	Plantagenet
Father	Lionel of Antwerp, Duke of Clarence
Mother	Elizabeth de Burgh, 4th Countess of Ulster

Philippa of Clarence also known as Philippa Plantagenet or Philippa de Burgh (16 August 1355 – 5 January 1382) was a medieval English princess and the suo jure Countess of Ulster.

Biography

She was born at Eltham Palace in Kent on 16 August 1355, the only child of Lionel of Antwerp, 1st Duke of Clarence, and Elizabeth de Burgh, 4th Countess of Ulster.^[2] Her father was the second son of King Edward III of England and Philippa of Hainault.^[3] She was the eldest grandchild of King Edward and Queen Philippa, her namesake.

Philippa married Edmund Mortimer, 3rd Earl of March, at the age of fourteen, in the Queen's Chapel at Reading Abbey,.^[2] Her cousin, King Richard II, remained childless, making Philippa and her descendants next in line to the throne until his deposition. In the Wars of the Roses, the Yorkist claim to the crown was based on descent from Edward III through Philippa,^[4] her son Roger Mortimer, and granddaughter Anne Mortimer, who married Richard of Conisburgh, 3rd Earl of Cambridge, a son of her uncle Edmund of Langley, 1st Duke of York.

Philippa died in 1382 and was buried at Wigmore Abbey, Herefordshire.

Marriage and issue

Her children with Edmund Mortimer were as follows:

Name	Birth	Death	Notes
Lady Elizabeth Mortimer	12 February 1371	20 April 1417	She first married Sir Henry 'Hotspur' Percy, with whom she had two children, Henry Percy, 2nd Earl of Northumberland, and Lady Elizabeth Percy. Her second husband was Thomas de Camoys, Baron Camoys, with whom she had a son, Lord Roger de Camoys. Elizabeth Mortimer was an ancestor of the third queen consort of Henry VIII, Jane Seymour.
Roger Mortimer, 4th Earl of March	11 April 1374	20 July 1398	He married Lady Alianore Holland, by whom he had four children, Anne, Edmund Mortimer, 5th Earl of March, Eleanor, and Roger. The House of York's claim to the throne was through his eldest daughter, Anne Mortimer.
Lady Philippa Mortimer	21 November 1375	26 September 1400	She first married John Hastings, 3rd Earl of Pembroke. Her second husband was Richard Fitzalan, 11th Earl of Arundel, with whom she had a son, John, who died young. Her third husband was Sir Thomas Poynings of Basing, 5th Baron St. John.
Sir Edmund Mortimer	9 November 1376	before 13 May 1411	Married Catrin (Catherine) Glyndŵr, the daughter of Owain Glyndŵr. They had issue, possibly a son named Lionel, said to have died young,^[5] and three daughters who died in the Tower of London alongside their mother.

Ancestry

Ancestors of Philippa, 5th Countess of Ulster

8. Edward II of England^[8]

4. Edward III of England^[6]

9. Isabella of France^[8]

2. Lionel of Antwerp, 1st Duke of Clarence^[6]

10. William I, Count of Hainaut^[9]

5. Philippa of Hainault^[6]

11. Joan of Valois^[9]

1. Philippa, 5th Countess of Ulster

12. John de Burgh^[7]

6. William Donn de Burgh, 3rd Earl of Ulster^[6]^[7]

13. Elizabeth de Clare^[7]

3. Elizabeth de Burgh, 4th Countess of Ulster^[6]

14. Henry, 3rd Earl of Lancaster

7. Maud of Lancaster^[6]

15. Maud Chaworth

References

Citations

^ "Mortimer, Philippa (1355-1382)". www.encyclopedia.com. Encyclopedia.com.
^ ^a ^b Leese 2007, p. 91.
^ Ormrod 2008.
^ Weir 1995.
^ Weir 2008, p. 99.
^ ^a ^b ^c ^d ^e ^f Weir 2008, p. 96.
^ ^a ^b ^c Ward 2004.
^ ^a ^b Weir 2008, pp. 92–6.
^ ^a ^b Weir 2008, p. 93.

Bibliography

Davies, R.R. (2004). "Mortimer, Roger (VII), fourth earl of March and sixth earl of Ulster (1374–1398)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/19356. (Subscription or UK public library membership required.)
Leese, Thelma Anna (2007). Blood Royal: Issue of the Kings and Queens of Medieval England, 1066–1399. Heritage Books.
Ormrod, W. M. (January 2008) [2004]. "Lionel, duke of Clarence (1338–1368)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/16750. (Subscription or UK public library membership required.)
Richardson, Douglas (2011). Everingham, Kimball G. (ed.). Magna Carta Ancestry: A Study in Colonial and Medieval Families. Vol. III (2nd ed.). Salt Lake City. ISBN 978-1449966393.{{cite book}}: CS1 maint: location missing publisher (link)
Ward, Jennifer (2004). "Clare, Elizabeth de (1294/5–1360)". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/5435. (Subscription or UK public library membership required.)
Weir, Alison (2008). Britain's Royal Families, The Complete Genealogy. London: Vintage Books. ISBN 978-0-09-953973-5.
Weir, Alison (1995). The Wars of the Roses. New York: Random House. ISBN 978-034-54043-36.

Peerage of Ireland
Philippa, 5th Countess of Ulster House of Plantagenet Born: 16 August 1355 Died: 5 January 1382
Preceded by Elizabeth de Burgh Lionel of Antwerp	Countess of Ulster 1368–1382 with Edmund Mortimer	Succeeded by Roger Mortimer