| Name | Constance of Castile | |
| Suffix | Duchess of Lancaster | |
| Gender | Female | |
| Person ID | I320174104749 | Hurst Improbable Family Tree |
| Last Modified | 11 Feb 2022 | |
| Father | The king of Castile and León from 1350 to 1369. Peter was the last ruler of the main branch of the House of Ivrea. Peter, King of Castile and León, b. 30 Aug 1334, Burgos, Spain d. 23 Mar 1369 (Age 34 years) | |
| Mother | Maria de Padilla, (Mistress), b. Abt. 1334, Seville, Andalucia, Spain d. Jul 1361 (Age 27 years) | |
| Family ID | F854 | Group Sheet | Family Chart |
| Family | John Gaunt Plantagenet, b. 6 Mar 1340, St. Bavon Abbey, Ghent, Flanders d. 03 February 1399, Leicestershire, England (Age 58 years) | |||||||
| Marriage | 1372 | Roquefort, Landes, Aquitaine, France |
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| Children |
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| Family ID | F3318 | Group Sheet | Family Chart | ||||||
| Last Modified | 11 Feb 2022 | |||||||