Sons
James Stewart, 4th Duke of Lennox, 1st Duke of Richmond (1612–1655), eldest son and heir. He resided at Cobham Hall in Kent (granted in 1606 to his uncle Ludovic Stewart, 2nd Duke of Lennox, 1st Duke of Richmond (1574–1624), by his second cousin King James VI & I) and served as Lord Warden of the Cinque Ports, based at Dover Castle in Kent;
Henry Stewart, 8th Seigneur d'Aubigny (1616–1632). He studied in the City of Bourges (the capital of the former province of Berry, in which was situated Aubigny) and later at Paris, then visited Venice with the statesman Richard Weston, 1st Earl of Portland (father of his sister's husband) where he died at age 17, and was buried in the Church of Santi Giovanni e Paolo, Venice;
Francis Stewart (1616–1617), died in infancy;
George Stewart, 9th Seigneur d'Aubigny (1618–1642), killed aged 24 fighting for the royalist cause in the English Civil War. He married Katherine Howard (d. 1650), a daughter of Theophilus Howard, 2nd Earl of Suffolk, by whom he was the father of Charles Stewart, 3rd Duke of Richmond, 6th Duke of Lennox (1638–1672), of Cobham Hall and of Richmond House in London, the last in the male line of the Stewarts of Aubigny, who was the heir of his infant first cousin Esmé Stuart, 2nd Duke of Richmond, 5th Duke of Lennox (1649–1660), the son and heir of James Stewart, 1st Duke of Richmond, 4th Duke of Lennox (1612–1655), of Cobham Hall;
Ludovic Stewart, 11th Seigneur d'Aubigny (1619–1665), a priest who shortly before his death became a cardinal;
Lord John Stewart (1621–1644) killed aged 23, unmarried, fighting for the royalist cause in the English Civil War;
Lord Bernard Stewart (1623–1645) killed aged 22, unmarried, fighting for the royalist cause in the English Civil War. For his war services, he was due to be created Earl of Lichfield, but died before the formalities were completed, and the title was instead awarded to his nephew Charles Stewart (1638–1672), later 3rd Duke of Richmond, 6th Duke of Lennox.
