Louis made attempts to convert his pagan or "schismatic" subjects to Catholicism, even by force. The conversion of the pagan Cumans who had settled in Hungary a century before was completed during his reign, according to John of Küküllő. After the conquest of Vidin, he sent Franciscan friars to the new banate to convert the local Orthodox population, which caused widespread discontent among the Bulgarians. In 1366, he ordered that all Serbian priests be converted and rebaptised. He also decreed that only Roman Catholic noblemen and knezes were allowed to hold landed property in the district of Sebes in Temes County. Louis supported the religious orders, especially the Franciscans and the Paulines, for whom he and his mother set up dozens of new monasteries. Upon Louis's request, Pope Urban V sanctioned the establishment of a university in Pécs in 1367, with the exception of a faculty of theology. However, Louis did not arrange for sufficient revenues and the university was closed by 1390.