Rubuta ci gaba don wannan sakin layi - Yayinda yake matashi iyayensa suka tura shi zuwa Kwalejin Clementine a Rome, inda ya sami ci gaba cikin sauri a haruffa da doka. Ba da daɗewa ba bayan kammala karatunsa Paparoma Pius VI ya sanya shi prothonotary Apostolic. A shekara ta 1793 an tsarkake shi a matsayin Babban Bishop na Thebes, kuma aka aika shi a matsayin nuncio zuwa Poland, inda ya isa a watan Maris, 1794, jim kadan kafin fara tayar da hankali
Ka yi haƙuri. Duk da wahalar matsayinsa, ya yi amfani da tasirinsa tare da Tadeusz Kościuszko a madadin Cocin Katolika, kuma ya ceci rayuwar Monsignor Wojciech Skarszewski, Bishop na Chełm, wanda aka riga aka yanke masa hukuncin kisa saboda yin aiki tare da Rasha. Bai yi nasara ba game da Bishop na Vilnius da Livonia Ignacy Jakub Massalski.