Philippa, 5th Countess of Ulster
Member of the House of Plantagenet
Philippa of Clarence also known as Philippa Plantagenet or Philippa de Burgh was a medieval English princess and the suo jure Countess of Ulster. Wikipedia
Born: August 16, 1355, Eltham Palace, London, United Kingdom
Died: January 5, 1382 (age 26 years), Cork, Ireland
Children: Roger Mortimer, 4th Earl of March, Philippa Mortimer, Elizabeth Mortimer, and more
Spouse: Edmund Mortimer, 3rd Earl of March (m. 1368)
Great grandchildren: Richard of York, 3rd Duke of York, William Hastings, 1st Baron Hastings, Mary Clifford, and more
Grandchildren: Anne de Mortimer, Edmund Mortimer, 5th Earl of March, Lady Eleanor de Mortimer, and more