Pappacoda presented the will that supported Philip II. Sigismund Augustus contested this will and claimed that Pappacoda poisoned Bona and falsified her last will. The Habsburgs claimed that it was Sigismund Augustus who forged the second will. Sigismund Augustus sent Wojciech Kryski to Madrid, Jan Wysocki to Rome, and Marcin Kromer to the court of Ferdinand I, Holy Roman Emperor, who was also Philip's uncle and Sigismund's father-in-law. In connection with the dispute, Sigismund Augustus established the first courier service that connected Kraków with Venice in October 1558. The first royal postmaster was Italian banker Prospero Provana.
