 When Poniatowski was elected king (1764), Krasicki became his chaplain.He participated in the King's famous "Thursday dinners" and co-founded the "Monitor", the preeminent Polish Enlightenment periodical, sponsored by the King.In 1766 Krasicki, after having served that year as coadjutor to Prince-Bishop of Warmia Adam Stanisław Grabowski, was himself elevated to Prince-Bishop of Warmia and "ex officio" membership in the Senate of the Commonwealth.