sentences:  In 1860 he retired, but remained physician to the Grand Duchess and had extensive contacts at the Russian Imperial court.In 1862 Mianowski became rector of the Warsaw Main School ("Szkoła Główna Warszawska"), then the only institution of higher learning in Russian Poland (all others having been closed after the November 1830 Uprising).The Main School was a reincarnation of the closed University of Warsaw.