Columbia subject headings:
Harvard subject headings:
Grudzińska, Joanna, księżna łowicka, 1799-1831.
Konstantin Pavlovich, Grand Duke of Russia, 1779-1831.
Princeton subject headings:
Grudzińska, Joanna, księżna łowicka, 1799-1831.
Konstantin Pavlovich, Grand Duke of Russia, 1779-1831.
Nobility--Poland--Biography.
Nobility--Russia--Biography.
Poland--History--1795-1830.
Russia--History--Alexander I, 1801-1825.
Russia--History--Nicholas I, 1825-1855.