Cecilia was born about 1240 in Barnard Castle, Gainford, Durham, England, the daughter of unknown parents.
She died in DEC 1273 in Barnard Castle, Gainford, Durham, England.
Her husband was sir John II de Burgh. They were married, but the date and place have not been found. Their only known child was Devorguilla (c1251-c1284).
| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | ABT 1240 |
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| Death | DEC 1273 |
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