#Princess #ElisaRadziwiłł (Elisa Friederike Luise Martha; Polish: Eliza Fryderyka Luiza Marta Radziwiłłówna; 28 October 1803 – 27 August 1834) was a member of #PolishNobility (of the #HouseOfRadziwiłł, who were elite #magnates), of royal ancestry. She was the desired bride of Prince William of Prussia, who later became #WilliamIGermanEmperor, but they were not allowed to marry.