Sir Robert de Mandeville

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Sir Robert de Mandeville

Birthplace: England
Immediate Family:

Son of Geoffrey de Mandeville and 1st wife of Geoffrey de Mandeville
Half brother of Sir Ralph de Mandeville

Managed by: Erica Howton
Last Updated:

About Sir Robert de Mandeville

Geoffrey's oldest son was called Robert. The name of Robert's mother was unknown. After the death of his first wife, by Geoffrey's second wife he had a son named Ralph. The name of Ralph's mother is also unknown. Robert and Ralph, sons of Geoffrey confirmed a charter of their father after the death of Richard de Redvers.[1] When Geoffrey died, the title of the barony of Marshwood was given by Henry I to this second son Ralph, because he was a better Knight than his older half-brother Robert.[10]


  • Wife: Margaret, 1085, Somerset, England Married 1109 Somerset, England


  • 1. Geoffrey de Mandeville de Coker, 1120, d England 1200, England (Age 80 years). Married Mary.
  • 2. Unknown de Mandeville, 1110, England. Married William Avenel.
  • 3. Hugh de Mandeville, 1109, Normandy, d Devon, England


In about 1100 another de Mandeville family came to England in the form of two brothers; Geoffrey and Roger. They travelled in the company of their feudal lord, Richard de Redvers as followers of Prince Henry, youngest son of William the Conquer, when Henry seized the throne of England to become Henry I. Geoffrey got land in Dorset and on the Isle of Wight from the Redvers family and died c.1119. He had two sons; Ralph and Robert. The latter’s great great-grandson; Geoffrey de Mandeville, held land in Devon, Wiltshire, Somerset and Dorset at his death in 1269. His great-grandson, Robert de Mandeville was outlawed in 1307 and lost most of his estates.[14]


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