Title: Wielki Książę Konstanty i Joanna Grudzińska
Subjects: Biography, History, Nobility
Places: Poland, Russia
People: Joanna Grudzińska księżna łowicka (1799-1831), Konstantin Pavlovich Grand Duke of Russia (1779-1831)
Time periods: 1795-1830, Alexander I, 1801-1825, Nicholas I, 1825-1855