Dulong History, Family Crest & Coats of Arms
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The name Dulong belongs to the early history of France, in that much fought over region of Normandy. It is a product of the family's residency at Longueuil, in Normandy.
Early Origins of the Dulong family
The surname Dulong was first found in Normandy (French: Normandie), the former Duchy of Normandy, where the family established itself in early times.
One of the first records of the name was Guillaume Longue-Épée (c. 893-942), also known as William Longsword. He was the second ruler of Normandy, from 927 until his assassination in 942 when he was ambushed and killed by followers of Arnulf while at a peace conference to settle their differences. He was son of the Viking Rollo (c.846-930), the first ruler of Normandy.
Early History of the Dulong family
This web page shows only a small excerpt of our Dulong research. Another 70 words (5 lines of text) covering the years 1463, 1470, and 1880 are included under the topic Early Dulong History in all our PDF Extended History products and printed products wherever possible.
Dulong Spelling Variations
French surnames were subject to numerous alterations in spelling because of the various cultural groups that inhabited specific regions. Eventually, each region possessed its own local dialect of the French language. The early development of the French language, however, was also influenced by other languages. For example, Old French was infused with Germanic words and sounds when barbarian tribes invaded and settled in France after the fall of the Roman Empire. Middle French also borrowed heavily from the Italian language during the Renaissance. As a result of these linguistic and cultural influences, the name Dulong is distinguished by a number of regional variations. The many spelling variations of the name include Delong, DeLong, Delon, Long, Lelong, Longin, Longet, Longuet, Longuay, Longueuil, Longeau, Longueau, Longeaux, Longueaux, Longeaud, Longaud, Longeret, Longueret and many more.
Early Notables of the Dulong family (pre 1700)
Notable amongst the family in this period was Richard Olivier de Longueuil, a French prelate, who was ordered by the pope to oversee the trial of Jeanne d'Arc, and...
Another 29 words (2 lines of text) are included under the topic Early Dulong Notables in all our PDF Extended History products and printed products wherever possible.
Migration of the Dulong family
France was active as a cultural leader in the early 16th century. One particular area in which they lead was the exploration of the New World. The explorers, like Jacques Cartier in 1534, led the way to North America. Champlain, in 1608, made the first of twenty voyages to France to attract settlers and brought the first migrant in 1617. By 1675, there were 7000 French in Quebec, and the French Acadian presence in the Maritimes had reached 500. The French founded Lower Canada, thus becoming one of the two great founding nations of Canada. The family name Dulong has made many distinguished contributions in France and New France to the world of science, culture, religion, and education. Amongst the settlers in North America with this distinguished name Dulong were Jean Delon, who settled in Louisiana in 1720; M. de Longrais, who was living in Natchez, Louisiana in 1726; M. Delongrais, who settled in Louisiana in 1729.
Contemporary Notables of the name Dulong (post 1700) +
- Claude Dulong (b. 1922), French historian also known as Claude Dulong-Sainteny or Marguerite-Claude Badalo-Dulong, elected in the Académie des sciences morales et politiques in 1995
- Pierre Louis Dulong (1785-1838), French chemist and physicist who co-developed the law of Dulong and Petit; he worked on the specific heat capacity and the expansion and refractive indices of gases
- Louis Étienne Dulong de Rosnay, French Divisional General during the French Revolutionary and Napoleonic Wars from 1789 to 1815 
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