| Male Duke of Clarence Lionel Plantagenet |
| Birth | 29 Nov 1338 | Antwerp, Brabant, Germany, Antwerp, , Antwerpen, Belgium |
| Death | 17 Oct 1368 | Alba, , , Italy |
| Burial | ||
| Marriage | 15 Aug 1342 | Tower of London, London, Greater London, England, United Kingdom |
| Father | King of England Edward Plantagenet, III | F1600 Group Sheet | |
| Mother | Philippa, of Hainault | F1600 Group Sheet | |
| Female Countess of Ulster Elizabeth De Burgh |
| Birth | 6 Jul 1332 | Carrickfergus Castle, Ulster, England, United Kingdom |
| Death | 10 Dec 1363 | Dublin, Dublin, Leinster, Ireland |
| Burial | ||
| Father | ||
| Mother | ||
+ Countess of Ulster Philippa Plantagenet |
| Birth | 16 Aug 1355 | Eltham Palace, Eltham, Kent, England, United Kingdom |
| Death | 1 Jan 1382 | |
| Burial | ||
| Spouse | Earl of March Edward Mortimer | F1797 | |
| Marriage | 15 Feb 1359 | Queen's Chapel, Reading Abbey, Reading, Berkshire, England, United Kingdom |