Overview
Catherine Elisabeth of Brunswick-Lüneburg (c. 1367 – after 1423) was Duchess consort of Schleswig and Countess consort of Holstein-Rendsburg. She was the regent of some of the fiefs of her son Henry during his minority from 1404 to 1415.
Biography
She was a daughter of Magnus II, Duke of Brunswick-Lüneburg and Catherine of Anhalt-Bernburg, daughter of Bernhard III, Prince of Anhalt-Bernburg. Through her mother, she was the great-great granddaughter of King Abel of Denmark. She would also become the grandmother of Christian I of Denmark.
Catherine Elisabeth was in fact likely named only Catherine; she was often referred to as Elisabeth in older literature, but this was likely due to a mixup with her younger sister, who was named Elisabeth. In the 14th century, it was still rare to have two first names such as "Catherine Elisabeth". Due to this confusion, however, she has sometimes been referred to by both names.
Catherine Elisabeth was engaged in 1390 and married in 1395 to Gerhard VI, Count of Holstein-Rendsburg.
From Wikipedia (CC BY-SA 4.0).