| Male Duke Lancaster I Henry |
| Birth | ||
| Death | 1361 | |
| Burial | ||
| Marriage | ||
| Father | Earl Lancaster Henry | F559 Group Sheet | |
| Mother | Maud Chaworth | F559 Group Sheet | |
| Female Blanche of_Lancaster |
| Birth | 1341 | |
| Death | 12 Sep 1369 | Bolingbroke,Castle |
| Burial | ||
| Spouse | Duke of Lancast. John of_Gaunt | F452 | |
| Marriage | 13 May 1359 | Reading |