"Christian Louis (German: Christian Ludwig; 25 February 1622 in Herzberg am Harz – 15 March 1665 in Celle) was Duke of Brunswick-Lüneburg. A member of the House of Welf, from 1641 until 1648 he ruled the Principality of Calenberg, a subdivision of the duchy, and, from 1648 until his death, the Principality of Lüneburg.
In 1641, Christian Louis inherited the Principality of Calenberg from his father, Duke George of Brunswick-Lüneburg, who had suddenly died. Like his father he resided at the Leineschloss in Hanover.
When in 1648 he also inherited the Principality of Lüneburg from his uncle, Frederick IV, Duke of Brunswick-Lüneburg, both subdivisions were ruled in personal union. However, Christian Louis gave Calenberg to his younger brother George William, and instead ruled the larger territory of Lüneburg at Celle Castle." - (en.wikipedia.org 31.01.2020)
