He was the natural son of King François I and his mistress Jacquette de Lansac, wife of Alexandre Saint-Gelais.
[6][7][8][9][10] Louis, Seigneur de Lansac, was State Councilor, Ambassador in 1554, captain of 100 men-at-arms, knight of the order of Saint-Michel on September and knight of the order of the Holy Spirit.
Gabrielle's parents' marriage took place on 16 November 1509, when her father was seven years old.
[15] The painting now in the Frick Art Museum, Pennsylvania, was once known as Lady Jane Grey.
Lee Porritt writes that a similar copy also with the blue background with an inscription and a plaque identifying the sitter as Gabrielle de Rochechouart, Dame de Lansac had been donated in 1897 to The Musée Condé by Henri d’Orléans, Duke of Aumale along with other paintings from the Duke of Sutherland's collection.