World of HYDE
Discovering our Ancestors and their descendants to all parts of the world. Last updated 23rd Feb 2024
Sir John De Mohun, I. Of Dunster
1227 - 1253 (~ 26 years)
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Name John De Mohun Prefix Sir Suffix I. Of Dunster Birth CA 1227 Dunster, Somerset, England, United Kingdom 
Gender Male _AMTID 132543160852:1030:194851487 _FSFTID GZPJ-1SF _UID C58778F005D54559994603878343F79FF1F8 Death 29 Jul 1253 Argenteuil, Val-D'Oise, Île-De-France, France Burial 1254 Bruton Priory, Somerset, England - his heart was buried at Newenham Abbey, Devon
Person ID I52355 World of Hyde Last Modified 8 Jan 2022
Father Sir Reginald De Mohun, II, b. Apr 1206, Dunster Castle, Dunster, Somerset, England d. 20 Jan 1258, Tormohun, Devon (Age ~ 51 years) Mother Hawise Fitzgeoffrey, b. 1207, Streatley Manor, Berkshire, England d. 8 Aug 1247, Tormohun, Devon, England (Age 40 years) Marriage Abt 1225 Norfolk, England Family ID F35352 Group Sheet | Family Chart
Family Joan De Ferrers, b. Abt 1228, Derby, Derbyshire, England d. Oct 1267, Addington, Surrey, England (Age ~ 39 years) Children 1. John De Mohun, II, b. 1248, Dunster Castle, Dunster, Somerset, England d. 11 Jun 1279, Dunster, Somerset, England (Age 31 years)Family ID F16385 Group Sheet | Family Chart Last Modified 21 Feb 2024
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Event Map 
Birth - CA 1227 - Dunster, Somerset, England, United Kingdom 
Death - 29 Jul 1253 - Argenteuil, Val-D'Oise, Île-De-France, France = Link to Google Earth
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Notes - RoyalAncestry: A Study in Colonial & Medieval Families,Douglas Richardson (2013): JOHN DE MOHUN, son and heir apparent. He married after 1245 JOAN DE FERRERS, 5th daughter of William de Ferrers, 5th Earl of Derby, by his 1st wife, Sibyl, 3rd daughter of William Marshal, Knt., 4th Earl of Pembroke (or Striguil), hereditary Master Marshal [see FERRERS 7 for her ancestry]. They had two sons, \b3 1. John and \b3 2. Robert. Joan was co-heiress in 1245 to her uncle, Anselm Marshal, 9th Earl of Pembroke. \b3 JOHN DE MOHUN died in Gascony in 1254. His body was buried in Bruton Priory, Somerset, and his heart buried at Newenham Abbey, Devon.
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Greywelle. The manor sometime belonged to a certain Reginald de Mohun, to him and his heirs in fee, who gave it to William, his younger son, and the heirs of his body. The said William had two daughters, viz-Mary and Eleanor was espoused to one John de Carru and they had a son, Nicholas, who died without issue. The other daughter Mary was espoused To John Meryet, and had a son Henry, who died without issue. Through such failure of issue, the manor ought to revert to one John de Mohun as kingsman and heir of the said Reginald. From the said Reginald the right of reversion of the said manor descended to John his son and heir, and from him to John his son, and from the said John son of John son of John to John his son and heir who now claims, he is aged 40 years and more.\cb3 Source: Southampton inquisition for John Meriet 1327.
- RoyalAncestry: A Study in Colonial & Medieval Families,Douglas Richardson (2013): JOHN DE MOHUN, son and heir apparent. He married after 1245 JOAN DE FERRERS, 5th daughter of William de Ferrers, 5th Earl of Derby, by his 1st wife, Sibyl, 3rd daughter of William Marshal, Knt., 4th Earl of Pembroke (or Striguil), hereditary Master Marshal [see FERRERS 7 for her ancestry]. They had two sons, \b3 1. John and \b3 2. Robert. Joan was co-heiress in 1245 to her uncle, Anselm Marshal, 9th Earl of Pembroke. \b3 JOHN DE MOHUN died in Gascony in 1254. His body was buried in Bruton Priory, Somerset, and his heart buried at Newenham Abbey, Devon.