The surname Deberard was first found in Brittany where the family has held a family seat from very ancient times. 
The family were also elected to the nobility at Montalet-Alais in Languedoc and became the Marquis of Montalet St. Pierre, as well as the Marquis of Montalet-Alais. They were strongly represented in the province of Lyonnais. Under the spelling Beraud they became the Marquis Croissy in Ile-de-France, and settled in Courville in Languedoc.
This web page shows only a small excerpt of our Deberard research. Another 52 words (4 lines of text) covering the year 1066 is included under the topic Early Deberard History in all our PDF Extended History products and printed products wherever possible.
^ Hozier, Charles D, and Antoine Bachelin-Delforenne. État présent De La Noblesse française (1883-1887): Contenant Le Distionnaire De La Noblesse Contemporaine Et Larmorial général De France, Dapres Les Manuscrits De Ch. D Hozier. Librairie Des Bibliophiles, 1884. Print.