Show ContentsDechaux History, Family Crest & Coats of Arms

The surname Dechaux comes from the region of Gascogne in southwest France. It was a name for someone who lived in Gascoigne.

John de Caleto or Caux (d. 1263), Treasurer of England, was "probably a native of the Pays de Caux. By Matthew Paris he is called John of Caen (Johannes de Cadamo), and other writers give his cognomen in the various forms De Calceto, De Cauz, De Cauaz, De Caus, and De Chauce. The Peterborough chronicler, Walter of Whittlesea, who wrote in the fourteenth century, states that he was born in Normandy, of a noble family, being related to Eleanor of Provence, the queen of Henry III, and entered the monastic life when a child seven years of age. Coming over to England at an early age, he became a monk of the monastery of St. Swithhun, Winchester, of which he was chosen prior in 1247." 1

Early Origins of the Dechaux family

The surname Dechaux was first found in Gascony (French: Gascogne), an area of southwest France bordering Spain, that was part of the "Province of Guyenne and Gascony" prior to the French Revolution, where the family held a family seat in ancient times.

Antoine Casse, born in 1639, son of Noel and Michelle of St.Pierre, travelled from France to Canada in the 17th century. After arriving in Quebec he married Piloy De Pitie, born in 1639, daughter of François and Claudine, at Château-Richer on 14th October 1665. They remained together in Quebec until Antoine's death on 1st June 1709. Piloy passed away on 28th February 1713. 2

Early History of the Dechaux family

This web page shows only a small excerpt of our Dechaux research. Another 97 words (7 lines of text) covering the years 1576, 1630, 1646, 1672, 1673, 1715, 1719, 1741, 1765, 1792, 1793, 1800, 1810 and 1820 are included under the topic Early Dechaux History in all our PDF Extended History products and printed products wherever possible.

Dechaux Spelling Variations

Most surnames have experienced slight spelling changes. A son may not chose to spell his name the same way that his father did. Many were errors, many deliberate. During the early development of the French language, a person usually gave his version, phonetically, to a scribe, a priest, or a recorder. Prefixes or suffixes varied. They were optional as they passed through the centuries, or were adopted by different branches to signify either a political or religious adherence. Hence, there a many spelling variations of the name Dechaux, including Casse, Cassé, Cassée, Casset, Casser, Cassez, Casson, Cassonne, Casault, Casot, Caseau, Caseaux, Casseau, Casseaux, Cassaud, Cazeau, Cazeaux, Cazot, Cazotte, Cazault, Cazaud, Caze, Cazes, Lecasse, Lacasse, Lecassé, Lacassé, Lacassée, Lecasset, Lacasset, Lacaze, Lecasson, Lacasonne, Lecasault, Lacazeau, Ducasse, Ducassé, Ducasset, Ducasson, Ducasault, de Casson, de Cassonne, de Caze, de Cazes, Descaseaux, Deschaseaux and many more.

Early Notables of the Dechaux family

Notable amongst the family at this time was Jean Baptiste du Casse (1646-1715), a French buccaneer and admiral; Dollier de Casson, a prominent Quebec missionary, explorer, architect, engineer and writer, among whose works was "Histoire de Montréal" (1672-1673), the first local history of the Montreal area, and a very true picture...
Another 50 words (4 lines of text) are included under the topic Early Dechaux Notables in all our PDF Extended History products and printed products wherever possible.

Dechaux Ranking

In France, the name Dechaux is the 5,092nd most popular surname with an estimated 1,000 - 1,500 people with that name. 3

Migration of the Dechaux family

By 1643 there were only about 300 people in Quebec. Since immigration was slow, early marriage was desperately encouraged amongst the immigrants. The fur trade attracted migrants, both noble and commoner. 15,000 explorers left Montreal in the late 17th and 18th centuries. By 1675, there were 7000 French in Quebec. By the same year the Acadian presence in Nova Scotia, New Brunswick and Prince Edward Island had reached 500. In 1755, 10,000 French Acadians refused to take an oath of allegiance to England and were deported to Louisiana. The French founded Lower Canada, thus becoming one of the two great founding nations of Canada. The distinguished family name Dechaux has made significant contributions to the culture, arts, sciences and religion of France and New France. Amongst the settlers in North America with this distinguished name Dechaux were W. Casse, who arrived in Bermuda in 1635 at the age of 19; Antoine Lacasse-Casse, who settled in Quebec in 1665; Valentin Casser, who settled in Philadelphia in 1748.


Contemporary Notables of the name Dechaux (post 1700) +

  • Brigadier-General Louis Dechaux (1883-1954), French General Officer Commanding Artillery, XII Corps (1940) 4


  1. Smith, George (ed), Dictionary of National Biography. London: Smith, Elder & Co., 1885-1900. Print
  2. Olivier, Reginald L. Your Ancient Canadian Family Ties. Logan: The Everton Publishers, Inc., P.O. Box 368, 1972. Print
  3. http://www.journaldesfemmes.com/nom-de-famille/nom/
  4. Generals of World War II. (Retrieved 2011, October 3) Louis Dechaux. Retrieved from http://generals.dk/general/Dechaux/Louis-L%C3%A9on/France.html


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