Catherine de Balsac (1547-1631) (d. 1631) Parents Louise d'Humieres William of Balsac, Lord of Entragues and Marcoussins Children Lady Gabrielle Stuart Esmé Stewart, 3rd Duke of Lennox Marie Stewart, Countess of Mar Henrietta Stewart Ludovic Stewart, 2nd Duke of Lennox Siblings Charles de Balsac d'Entragues François de Balzac, Seigneur d'Entragues Charles de Balsac Partners Esmé Stewart, 1st Duke of Lennox