Anna of Brandenburg
Margravine Anna of Brandenburg (27 August 1487 – 3 May 1514) was a German noblewoman. Margravine Anna was the daughter of John Cicero, Elector of Brandenburg and Margaret of Thuringia. She was born in Berlin, Brandenburg, and died in Kiel, Holstein. Marriage. In 1500 she was betrothed to Frederick, then Duke of Schleswig and Holstein and, after her death, king of Denmark and Norway. Because they were second cousins (Frederick's mother Dorothea of Brandenburg was the cousin of Anna's father) their marriage required a Papal dispensation. In addition, the marriage was not held until 10 April  1502 due to Anna's youth. The marriage, held in Stendal, was a double one: on the same day, Anna's brother Joachim and Frederick's niece Elisabeth were married. Anna and Frederick had two children: She died in 1514 at age 26. Her husband was remarried, to Sophie of Pomerania, and had six more children.