Hamon Dentatus

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"Hamon Dentatus, Earl of Corboyle" (d.1047). Detail from 1860 imaginary depiction in 1st Grenville Window (1860) in south wall of Grenville Chapel, Church of St James the Great, Kilkhampton, Cornwall. His shield shows attributed arms[1] of Azure, a lion rampant or impaling Argent, an eagle with two heads sable

Hamon Dentatus (d. circa 1047) was a Norman noble who held the lordship of Torigni-sur-Vire, Manche, in Normandy. Hamon Dentatus rebelled against Duke William, later William the Conqueror, and died in about 1047.[2] His Latin epithet Dentatus signifies "betoothed" or "toothy". Little is known about his origins or life[3] other than his progeny.


He left progeny including:

Grenville legend[edit]

By the 17th century, the Grenville/Granville family of Stowe in the parish of Kilkhampton in Cornwall and of Bideford in Devon would develop pedigrees claimig descent from a supposed brothr of RObert Fitzhamon]], who was then made son of Hamon Dentatus. This was despite William of Malmesbury having described Hamo Dentatus as avus ("grandfather") to Robert Fitzhamon.[6] Rev. Roger Granville in his 1895 work History of the Granville Family[7] stated without any source or rationale being given,[8] that Hamon was a younger son of Mauger, jure uxoris Count of Corbeil, himself a younger son of Richard, Duke of Normandy, grandson of Rollo.[9] This pedigree appeared to Round to have been "hatched in the seventeenth century" (by the Granville family) "...wishing to exalt Hamon Dentatus."[8] The erroneous descent was given official status when recited in the royal warrant[10] signed in 1661 by King Charles II creating titles of nobility for John Granville, 1st Earl of Bath (1628-1701). An imaginary depiction of Hamon Dentatus, together with many other supposed and actual Granville family ancestors, is shown in a series of two stained glass windows erected in 1860 in the Granville Chapel in the Church of St James the Great, Kilkhampton, Cornwall, in which parish was situated the Grenville seat of Stowe.



  1. ^ The heraldic era did not commence until about 1200
  2. ^ Keats-Rohan Domesday People p. 242
  3. ^ Round, p.155: "Hamon Dentatus of whom hardly anything is known"
  4. ^ Hollister Henry I pp. 363-364
  5. ^ Barlow William Rufus pp. 188-189
  6. ^ Round, p.156
  7. ^ Granville, Roger, History of the Granville Family, p.'
  8. ^ a b Round, p.155
  9. ^ Round, p.154
  10. ^ Recited in Round, p.140