| Male John Derby |
| Birth | About 1312 | Breedon on the Hill, Leicestershire, England |
| Death | 30 Nov 1357 | Wakefield, Yorkshire, England |
| Burial | ||
| Marriage | Yes, date unknown [1, 2] | |
| Father | ||
| Mother | ||
| Female Amy de Gaveston |
| Birth | 6 Jan 1312 | Tonbridge Castle, Tonbridge, Kent, England |
| Death | 12 Jun 1340 | Wakefield, Yorkshire, England |
| Burial | ||
| Father | Piers de Gaveston, Earl of Cornwall | F5793 Group Sheet | |
| Mother | Margaret de Clare | F5793 Group Sheet | |
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Sources 🟢 Primary Evidence 🟡 Secondary Evidence 🟠Tertiary Evidence 🔴 Unreliable Evidence |
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