Trece meses después, un golpe de estado llevó al trono a Isabel I, hija de Pedro I, el 6 de diciembre de 1741. Iván Antónovich y su familia fueron encarcelados en la fortaleza de Dunamunde (actualmente en Riga ) el 13 de diciembre del año siguiente, después de una previa detención en Riga, donde la nueva Emperatriz había decidido primero enviarlos a Brunswick .
Elisabeth Christine became queen dowager upon the death of Frederick the Great on 17 August 1786. She wasn't present at the death of her spouse and hadn't seen him since January of that year, but was given public sympathy for his death because of the popularity she enjoyed among the public, to all of whom, according to Spalding, she was "so dear in her affliction."
This list contains all European emperors, kings and regent princes and their consorts as well as well-known crown princes since the Middle Ages, whereas the lists are starting with either the beginning of the monarchy or with a change of the dynasty (e.g. England with the Norman king William the Conqueror, Spain with the unification of Castile and Aragon, Sweden with the Vasa dynasty, etc.).