[1] The family took its name from the seigneury of Faucogney in Franche-Comté.
Its filiation goes back to Gislebert landlord of Faucogney and viscount of Vesoul who founded in 1092 a priory near Vesoul.
[2][3] The Faucogney family was divided in four branches in the middle of the 12th Century.
[5] Jean de Faucogney married before 1336 Isabelle de France, daughter of King Philippe V and widow of Guigues VIII de La Tour du Pin (1309–1333),[6] they didn't have any children.
[2] The Faucogney family became extinct in the 14th century in the de Longwy family[1] with the marriage in 1370 of Jeanne de Faucogney with Henri de Longwy, lord of Rahon.