"Soldier, fur trader, "Father of Wisconsin," b. Mackinac, Mich. His father, Agustin, was an Indian trader of French extraction and his mother was the sister of the head chief of the Ottawas. He was educated by Jesuit missionaries. A bold, resourceful leader, loved and respected by the Indians, he held military office under the French, English, and American governments. Langlade's relationship to the Ottawas and his great prestige as a soldier were valuable assets when he and his father established a trading post at Green Bay about 1745. In 1755, at the outbreak of the French and Indian War, Langlade led warriors of the western tribes to Fort Duquesne and is credited with a major role in Braddock's defeat. During the war he also fought at Crown Point, Lake Champlain, Fort William Henry, and on the Plains of Abraham. He was made second in command at Mackinac in 1757, surrendered the post to the British in 1761, and transferred his allegiance to them in 1763. When, despite his warnings, Fort Mackinac was surprised during Pontiac's conspiracy, Langlade was able to persuade the Indians to spare many of the survivors of the massacre. About 1764 Langlade moved permanently to Green Bay. By founding and then settling at this post, he established his claim to the title of "Father of Wisconsin." He led Indian reinforcements to the aid of the British during the Revolutionary War and, at the conclusion of the war, returned to Green Bay and resumed his role as the leading personage of the district. (Note: date of death given in original as "after July 26, 1801.")"

Source: https://www.wisconsinhistory.org/Records/Article/CS9683
Dict. Amer. Biog.; Parkman Club Papers, 1: 205-223 (1896); P. V. Lawson, Bravest of the Brave (Menasha, Wis., 1904); WPA MS.
The Wisconsin Historical Society has manuscripts related to this topic. See the catalog description of the Charles Michel Monet de Langlade Papers for details.
View Langlade's memoir at Wisconsin Historical Collections.

His exact date of death is unknown, except for the latter part of 1801 after the end of July.

For a complete biography, see also
http://www.uwgb.edu/wisfrench/library/articles/langlade/∼Source: The Story of Charles Langlade entitled:
"Father of Wisconsin—A hero from the Tip of the Mitt"
Written by: Historian Rick Wiles
Published: Mackinaw Journal March 2018
Mackinaw City, Michigan 49701

Note #1 His remains, and those of his family members, were buried in La Baye, one of Green Bay's first cemeteries. His remains and those of his family members were removed and reburied around 1835 in an unmarked mass grave in Allouez Catholic Cemetery.

Note #2 State of Wisconsin designates Charles as the "The Founder and Father of Wisconsin."

Charles de Langlade and family members his were originally buried in the La Bayes Cemetery, Green Bay's first cemetery. About 1835, the La Baye Cemetery closed and was abandoned. Remains of the De Langlade family members and others that had been Catholic were moved to a mass grave at Allouez Catholic Cemetery. Remains of others who were buried at La Baye Cemetery were moved to Baird's Place Cemetery (now is a park) where many remain to this day.

NOTE FROM J. BIEBEL, MANAGER OF THIS PROFILE: I have had many people request transfer of this memorial, all stating they were related to Charles de Langlade. I am choosing to maintain management. I have also asked Find A Grave to designate this as a "famous" memorial, but Find A Grave has refused.