John Frederick, Duke of Brunswick
Member of the House of Hanover
John Frederick was duke of Brunswick-Lüneburg. He ruled over the Principality of Calenberg, a subdivision of the duchy, from 1665 until his death. Wikipedia
Born: April 25, 1625, Herzberg am Harz, Germany
Died: December 18, 1679 (age 54 years), Augsburg, Germany
Grandchildren: Maria Josepha of Austria, Maria Amalia of Austria, Francesco III d'Este, and more
Spouse: Benedicta Henrietta of the Palatinate (m. 1668)