"Christian Ernst of Brandenburg-Bayreuth (6 August 1644 in Bayreuth – 20 May 1712 in Erlangen) was a member of the House of Hohenzollern and Margrave of ...
Brandenburg-Bayreuth.
He was the only son of Erdmann August, Hereditary Margrave (Erbmarkgraf) of Brandenburg-Bayreuth, by his wife and first cousin, Sophie of Brandenburg-Ansbach.
The death of his father (6 February 1651) made Christian Ernst the new heir to the margraviate of Bayreuth. At the age of ten, he succeeded his grandfather Christian as margrave when he died on 30 May 1655. His uncle Georg Albrecht acted as regent until 1664, when Christian Ernst was declared an adult and assumed the government of his principality." - (en.wikipedia.org 30.01.2020)
