Karl Marx | Duke University | Duke Ellington | Duke | Duke of Wellington | Prince William, Duke of Cambridge | Wilhelm II, German Emperor | Duke of York | Duke of Norfolk | Wilhelm II | Wilhelm Reich | Duke of Edinburgh | Duke of Burgundy | Gottfried Wilhelm Leibniz | Prince Arthur, Duke of Connaught and Strathearn | Karl Pilkington | Karl Lagerfeld | George Villiers, 1st Duke of Buckingham | Prince Andrew, Duke of York | Duke of Northumberland | Alfred, Duke of Saxe-Coburg and Gotha | Prince Richard, Duke of Gloucester | Prince Frederick, Duke of York and Albany | Karl G. Heider | George Duke | Charles Lennox, 2nd Duke of Richmond | Karl Rove | Karl Pearson | Karl May | Karl Liebknecht |
Wilhelm was the son of Duke Wilhelm of Württemberg (1761-1830) and his morganatic wife, Baroness (Freiin) Wilhelmine von Tunderfeldt-Rhodis (1777-1822), whom he married at Coswig on 23 August 1800.
His daughter Marie-Gabrielle (aka Mariga) was the first wife of Desmond Guinness, a diplomat, artist turned journalist, and expert on the Far East.
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Karl Gero, Duke of Urach (1899–1981), 3rd Duke, who married Countess Gabriele of Waldburg-Zeil (1910–2005).