Alexandra von Nassau (previously styled Her Imperial Majesty Alexandra, Countess of Esch-sur-Alzette) is a Letzeburgish princess and titular ruler of Esch-sur-Alzette. She served as the second monarch and first female monarch of Großgermania, following a coup d'état in May 2009. While in office, she also served as head of the National Unionist Party of Großgermania (NUPG). Alexandra is related to every currently reigning European monarch, with the exception of Michael von Preußen.