John Frederick, Duke of Württemberg
Ruler
John Frederick of Württemberg was the Duke of Württemberg from 4 February 1608 until his death on 18 July 1628 whilst en route to Heidenheim. Wikipedia
Born: May 5, 1582, Montbéliard, France
Died: July 18, 1628 (age 46 years), Heidenheim, Germany
Parents: Frederick I, Duke of Württemberg and Sibylla of Anhalt
Great-grandparents: Heinrich, Count of Württemberg, Philip I, Landgrave of Hesse, Christine of Saxony, and more
Spouse: Barbara Sophie of Brandenburg (m. 1609–1628)