 She had two brothers who died as infants, Jules Louis Beaugiron and Jules Beaugiron, and a sister, Henriette Joséphine Beaugiron.On 12 October 1882, at the age of 18, she gave birth to her first son, Henri Beaugiron, whose paternity was unknown and who was born at 69 Rue Condorcet in the 9th arrondissement.Marthe de Florian stated on the birth certificate that her profession was "embroiderer".