Princess consort of Orange by marriage to Frederick Henry, Prince of Orange. She acted as the political adviser of her spouse during his reign, and acted as his de facto deputy and regent during his infirmity from 1640–47. She also served as chair of the regency council during the minority of her grandson William III, Prince of Orange from 1650 until 1672. She was the daughter of count John Albert I of Solms-Braunfels and countess Agnes of Sayn-Wittgenstein. She became part of the court of Elizabeth, wife of Frederick V, Elector Palatine, the "Winter King" of Bohemia. After imperial forces defeated Frederick V, she fled from Prague with the pregnant queen to the west.
