Show ContentsDeymont History, Family Crest & Coats of Arms

The ancestors of the Deymont surname lived among the ancient Anglo-Saxon culture. The name comes from when they lived "the dayman," a dairyman or alternatively from the occupation of a "day's man," which was a servant of the keeper of a dairy. 1

Early Origins of the Deymont family

The surname Deymont was first found in Devon where they quickly rose to be Barons Dinham shortly after the Conquest as they claimed descendancy from the Viscounts Dinant of Bretagne. 2 Some of the family were found at Steeple Aston in Oxfordshire in ancient times; unfortunately one can presume there is now little evidence of their history. "In a chapel on the north side of the chancel are recumbent effigies of Sir Francis Page and his lady, to whom the manor of Middle Aston formerly belonged: Sir Francis destroyed some monuments of the Dinham family to make room for his own, which was erected in his life-time." 3

We did find this interesting passage about the family. "Whether these Cardinans were the ancestors of the Dynhams, or Dinhams, by whom these possessions were afterwards inherited, has been a subject of dispute; some contending that they belong to the same family, and others arguing that the latter is a distinct race. By those who contend for the distinction between these families, it is said, that Isolda, the descendant, perhaps the grand-daughter, of Robert de Cardinan, being the heiress to his estates, brought this property by marriage to Thomas de Tracy, who in the year 1257 was one of the greatest landholders in Cornwall. This lady, who was left a widow, conveyed this manor as Isolda de Cardinan, who had been the wife of Thomas Tracy, to Oliver de Dinant, or Dinan, in the year 1259; which family of Dinan is said to have taken their name from Dinan in Brittany, where they had founded a monastery, and erected a castle, at a very distant period. During these descents, the name was indifferently written Dynam or Dinham, but in process of time the latter finally prevailed. In the reign of Henry VI. John Dinham, Esq. of Cardinham, who was sheriff of Devon, and resided on his barton of Nutwell." 4

"Part of the manor of Lanherne, and Kankewas, [in the manor of St. Evall, Cornwall], with all the manorial rights connected with it, was purchased by Mr. John Dayman. " 4

Early History of the Deymont family

This web page shows only a small excerpt of our Deymont research. Another 140 words (10 lines of text) covering the years 1221, 1224, 1332, 1379 and 1695 are included under the topic Early Deymont History in all our PDF Extended History products and printed products wherever possible.

Deymont Spelling Variations

Before English spelling was standardized a few hundred years ago, spelling variations of names were a common occurrence. Elements of Latin, French and other languages became incorporated into English through the Middle Ages, and name spellings changed even among the literate. The variations of the surname Deymont include De Dinant, Dinan, Dinam, Dinham, Diamond, Dymond, Dyment, Diment, Dymott, Dimont and many more.

Early Notables of the Deymont family

More information is included under the topic Early Deymont Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the Deymont family

A great wave of immigration to the New World was the result of the enormous political and religious disarray that struck England at that time. Families left for the New World in extremely large numbers. The long journey was the end of many immigrants and many more arrived sick and starving. Still, those who made it were rewarded with an opportunity far greater than they had known at home in England. These emigrant families went on to make significant contributions to these emerging colonies in which they settled. Some of the first North American settlers carried this name or one of its variants: John Diamond, who settled in Maine in 1620; Robert Dymond brought his family to Barbados in 1634; and Thomas Dyment settled in Virginia in 1635. The family also settled in Newfoundland between 1773 and 1871..



The Deymont Motto +

The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.

Motto: Toujours prest
Motto Translation: Always ready


  1. Bardsley, C.W, A Dictionary of English and Welsh Surnames: With Special American Instances. Wiltshire: Heraldry Today, 1901. Print. (ISBN 0-900455-44-6)
  2. The Norman People and Their Existing Descendants in the British Dominions and the United States Of America. Baltimore: Genealogical Publishing, 1975. Print. (ISBN 0-8063-0636-X)
  3. Lewis, Samuel, A Topographical Dictionary of England. Institute of Historical Research, 1848, Print.
  4. Hutchins, Fortescue, The History of Cornwall, from the Earliest Records and Traditions to the Present Time. London: William Penaluna, 1824. Print


Houseofnames.com on Facebook