This is copied from a family history article: After he returned from France, Pierre Boucher, Lord de Montbreun wrote a history of Canada, published in 1664. Born In France, he had moved to Canada in 1635, served as governor of his district for five years and died at age 95 in 1717. His descendants not only kept the de Montbreun but eventually dropped the Boucher from their name. Thus Pierres great-grandson, the early Nashville settler, was actually named Jacques-Timothe Boucher, Sieur (Lord) de Montbrun. His companions in his river-roving days called him Jacques, but in Nashville he was known as Timothy DeMonbreun the name he signed on deeds and other legal documents.
The spelling of Demonbreun is as varied as the speech habits and literacy of those who wrote the name. Some shortened it to Monbrun and others reduced it to the mumbled Mumbre. And in Nashville, ever since Timothy DeMonbreun lived here, the street named in his honor has been spelled Demonbreun. Son and grandson of men who had distinguished themselves in military careers, Timothy DeMonbreun had uncles who were governors of West Florida and the Natchez country. They and his cousins had been among the first white men to see the Rocky Mountains, and had established outposts as far west as what is now Minnesota, the Dakotas and Iowa. Timothy DeMonbreun, from a devoutly Catholic family, had two sisters who were nuns on the staff of a hospital in Montreal. Timothy himself, on Nov. 26,1766, when he was 19 years old, married Marguerite Therese-Archange Gibault, daughter of a merchant at Boucherville. Her cousin, Pierre Gibault, the town priest, performed the marriage ceremony, and in time baptized the DeMonbreun children.
His grandfather - (Rene) Jean Boucher De Montbrun - added De Montbrun’ ("Lord of Brown Mountain") after nobility awarded upon Pierre Boucher by King Louis XIV of France (for his military service in Canada).
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