Ernest I of Brunswick
…daughter of Henry V, Duke of Mecklenburg and Ursula of Brandenburg, on 2 June 1528 in Schwerin. They had the following children who reached adulthood: Francis Otto, Duke of Brunswick-Lüneburg (1530–1559), married Elisabeth Magdalena of Brandenburg, daughter of Joachim II Hector of Brandenburg and Hedwig of Poland. Frederick (1532–1553…