 He was honoured with a medal and membership of Historical-Literary Society in Paris (1852), as well as the Prussian Order of the Red Eagle, 4th class (1843).He was supported by Prince Adam Kazimierz Czartoryski, and he corresponded with scholars such as Stanisław Staszic, Tadeusz Czacki, Alojzy Feliński, Andrzej Horodyski, Stanisław Kostka Potocki, and Samuel Bogumił Linde.Mrongovius is also important as the primary source of seven sets of notes on Immanuel Kant's lectures in anthropology, metaphysics, theology, physics, logic, and two on moral philosophy.