 From November 1589 to December 1591 he was principal of the Hungarian–Illyrian (Croatian) college in Bologna.At this time he wrote his book "Methodica Processum Directio" (1590), on civil law, which shows the fruits of his collaboration with his friends Gašpar Petričević and Ivan Kitonić.It was reprinted by Kitonić, without acknowledgement and under an altered title, in 1619.