Louis II d'Orleans, Duke of Longueville

Louis II d'Orléans, duc de Longueville and comte de Dunois (1510 - 9 June 1537) was a French aristocrat and the first husband of Mary of Guise, who later became queen consort of Scotland. He was the second son of Louis I d'Orléans, duc de Longueville by his wife Jeanne of Hochberg, and succeeded his brother Claude when the latter died in 1524. He married Mary of Guise on 4 August 1534 at the Château du Louvre. During their brief marriage, the couple had two children:François, born 30 October 1535, who would later succeed to the dukedom, and Louis, a posthumous child born 4 August 1537, who died four months later. Louis died at Rouen on 9 June 1537, leaving Mary a widow; she would later marry James V of Scotland, but kept her last letter from Louis for the rest of her life.

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