Eberhard III, Duke of Württemberg

Eberhard III (16 December 1614, Stuttgart – 2 July 1674, Stuttgart) ruled as Duke of Württemberg from 1628 until his death in 1674.

Eberhard III became the heir under guardianship in 1628 during the Thirty Years' War at the age of 14 after the death of his father, Johann Frederick, 7th Duke of Württemberg. His guardian at first was his uncle Louis Frederick, Duke of Württemberg-Montbéliard, and after his death in 1631, Julius Frederick, Duke of Württemberg-Weiltingen.