1133: Rosana Chouteau
The First Woman Elected Chief of the Osage Beaver Band
Birth and Death Dates Unknown (Most likely born in the Indian Territory, known today as Oklahoma, United States of America)
Very little information about Rosana is known for certain today. She was elected as chieftain after the death of her uncle in 1875.
If Wikipedia can be believed, Rosana reportedly was quoted as saying, "I think my band obey me better than they would a man."
The Osage Beaver Band were an offshoot of the Osage Nation of Oklahoma.
Sources:
https://www.brooklynmuseum.org/eascfa/dinner_party/heritage_floor/rosa_chouteau