 John of Ludzisko and Archbishop Gregory of Sanok, the precursors of Polish humanism, were professors at the university.Gregory's court was the site of an early literary society at Lwów (Lviv) after he became the archbishop there.Scholarly thought elsewhere was represented by Jan Ostroróg, a political publicist and reformist, and Jan Długosz, a historian, whose "Annals" is the largest history work of his time in Europe and a fundamental source for history of medieval Poland.