 In 1482 he wrote a "Commentum planetarium in theoricas Georgii Purbachii"—a commentary on Georg von Peuerbach's text, "New Theories of the Planets"—published in Milan by his pupil, Jan Otto de Kraceusae.Besides Copernicus, Albert's students included the mathematician Bernard Wapowski and the German poet and Renaissance humanist, Conrad Celtis, who in Kraków established the first Central European literary society, "Sodalitas Litterana Vistulana".In 1495, at the behest of Cardinal Fryderyk Jagiellończyk (Frederick Jagiellon), Brudzewski moved to Vilnius as secretary to Grand Duke of Lithuania Aleksander Jagiellon, who would later become King Alexander of Poland.