Cecilia of Sweden (Swedish: Cecilia Gustavsdotter Vasa) (16 November 1540 in Stockholm – 27 January 1627 in Brussels), was Princess of Sweden as the daughter of King Gustav I and his second wife, Margaret Leijonhufvud, and Margravine of Baden-Rodemachern as the wife of Christopher II, Margrave of Baden-Rodemachern. She is the most famous daughter of Gustav I, known for a courtship scandal in connection with a sister's wedding and for a lengthy stay in England under Elizabeth I where her first child was born. Biography. Early life.
https://en.wikipedia.org/wiki/Princess_Cecilia_of_Sweden