Beatrice of Brandenburg

Beatrice of Brandenburg (c. 1270–before 1316) was a German princess of the Brandenburg Ascanians, the second daughter of Margrave Otto V the Tall and Judith of Henneberg. Her betrothal to Bolko I the Strict, Duke of Świdnica, was celebrated in 1279 and their church wedding followed in Berlin in 1284. She bore Bolko ten children.

After Bolko's death in 1301, either she acted as regent for their minor sons with the support of her brother Margrave Herman, or Herman acted as regent on their behalf. By 1308 she had remarried Duke Władysław of Koźle-Bytom-Siewierz, by whom she had two more children.