Overview
Louise Juliana of Orange-Nassau (31 March 1576 in Delft – 15 March 1644 in Königsberg) was a countess consort of the Palatinate by marriage to Frederick IV, Elector Palatine, and took part in the regency government of her son between 1610 and 1614. She also acted as a mediator between the king of Sweden and the elector of Brandenburg in 1631.
Biography
Louise Juliana was the first Dutch born member of the House of Orange-Nassau. She was the eldest daughter of William of Nassau, Prince of Orange and his third spouse Charlotte de Bourbon-Montpensier.
After her father was murdered in 1584, she and some of her five sisters were raised by their stepmother Louise de Coligny.
From Wikipedia (CC BY-SA 4.0).