Augustus II, Duke of Brunswick
Augustus II (10 April 1579 – 17 September 1666), called the Younger (German: August der Jüngere), a member of the House of Welf was Duke of Brunswick-Lüneburg. In the estate division of the House of Welf of 1635, he received the Principality of Wolfenbüttel which he ruled until his death.
Source: Wikipedia — Augustus II, Duke of Brunswick (CC BY-SA 4.0)