[2] Mandelys was married to fellow actor Georges Wague and was a frequent collaborator of director Louis Feuillade.
Mandelys was born in Paris, France on 3 December 1873.
[1] During the late 1890's, she studied the art of pantomime under Félicia Mallet at the Paris Conservatoire.
During this time, Mandelys met Georges Wagues, who was also studying mime.
During this time, she frequently collaborated with director Louise Feuillade and acted alongside Renée Carl, Alice Tissot, Maurice Vinot, and Jeanne Marie-Laurent, among others.