Anna, Margravine von Brandenburg (27 August 1487, Berlin–3 May 1514, Kiel) was a German noblewoman.
She was the daughter of Johann Cicero, Elector of Brandenburg and Margarethe of Saxony.
At age 15, on 10 April 1502 she married King Frederick I of Denmark. They had two children:
- Christian III of Denmark (12 August 1503 – 1 January 1559)
- Dorothea (1 August 1504 – 11 April 1547), married 1 July 1526 to Duke Albert of Prussia.
She died in 1514 at age 26. Her husband remarried, to Sophie of Pomerania, and had six more children.
Genetics
As a matrilineal relative of Elisabeth of Luxembourg and ultimately of Nicholas II of Russia, she and all her female-line descendants are members of mitochondrial haplogroup T.