The oldest known depiction of Maman Brigitte, a prominent figure in Haitian Vodou, can be found in the early 20th-century book "Le Negre et la Religion" by Jean Price-Mars. Published in 1928, this book includes a black and white illustration of Maman Brigitte, accompanied by a brief description of her role in Vodou belief and practice. Although this might not be the absolute earliest depiction, it is one of the earliest documented representations of Maman Brigitte.
