Catherine was the younger of two daughters of John, Margrave of Brandenburg-Küstrin (1513–1571) from his marriage to Catherine (1518–1574), daughter of Henry II, Duke of Brunswick-Wolfenbüttel . On 8 January 1570, she married Joachim of Brandenburg, later Elector Joachim III Frederick of Brandenburg (1546–1608) in Küstrin.
Catherine of Brandenburg-Küstrin was a Margravine of Brandenburg-Küstrin by birth and Electress of Brandenburg by marriage.
Since 2007, the English Wikipedia page of Catherine of Brandenburg-Küstrin has received more than 36,285 page views. Her biography is available in 15 different languages on Wikipedia. Catherine of Brandenburg-Küstrin is the 651st most popular nobleman, the 579th most popular biography from Poland and the 10th most popular Polish Nobleman.
Catherine of Brandenburg-Küstrin was born on August 10 1549, in Küstrin, to John, Margrave of Brandenburg-Küstrin and Catherine of Brunswick-Wolfenbüttel, Margravine of Brandenburg-Küstrin. Catherine married Joachim III Frederick, Elector of Brandenburg on January 8 1570, at age 20.
Catherine of von Brandenburg-Küstrin (born Hohenzollern Brandenburg-Kiustrinietė) was born on month day 1549, at birth place, to Johann I "der Weise" von Brandenburg-Küstrin (født Hohenzollern), Markgraf and Catherine of Brunswick-Wolfenbüttel, Margravine of von Braunschweig-Wolfenbüttel (born Welf iš Braunšveigo-Volfenbbutelo von Braunschweig-Wolfenbüttel (* 1518 in Wolfenbüttel ...
Catherine was a daughter of the Duke Henry V of Brunswick-Lüneburg (1489–1568) from his first marriage to Maria of Württemberg (1496–1541), daughter of Count Henry of Württemberg. She married on 11 November 1537 in Wolfenbüttel Margrave John of Brandenburg-Küstrin (1513–1571).