George William was the first Welf Duke of Lauenburg after its occupation in 1689. From 1648 to 1665, he was the ruler of the Principality of Calenberg as an appanage from his eldest brother, Christian Louis, Prince of Luneburg. Wikipedia
Born: January 26, 1624, Herzberg am Harz, Germany
Died: August 28, 1705 (age 81 years), Wienhausen, Germany
Grandchildren: George II of Great Britain, Sophia Dorothea of Hanover, and George Wilhelm von Bucco
Spouse: Éléonore Desmier d'Olbreuse (m. 1665)
Children: Sophia Dorothea of Celle and Lucas von Bucco