[7] After his appointment, Vincent sent Nicholas, archdeacon of Bács (present-day Bač, Serbia) to the Roman Curia to deliver his archiepiscopal pallium.
[10] Vincent paid his servitium commune to the Roman Curia in three installments in 1309, 1310 and 1311 (altogether 780 golden florins), which provoked the displeasure of the pope.
[11] Around August or September 1306, Pope Clement V ordered Archbishop Vincent to excommunicate the notorious Transylvanian voivode, Ladislaus Kán and to place his territory under ecclesiastic interdict, because the oligarch was reluctant to recognize the legitimacy of Charles I and nominally supported the other pretender, Otto of Bavaria.
Peter Monoszló, the Bishop of Transylvania, who maintained a distant but peaceful relationship with the voivode, disagreed with that step and expressed his displeasure, leaving the local clergymen and monks to ignore the punishment.
As a result, Vincent held out the prospect of the same ecclesiastic disciplinary actions against his nominal suffragan, Peter in case he would not excommunicate Ladislaus Kán who had previously also seized the properties of the Archdiocese of Kalocsa.
[14] In addition, the diet authorized the two archbishops of the realm, Thomas of Esztergom and Vincent of Kalocsa to excommunicate the "oath-breakers" and those who raise objections to the decision.
[15] Vincent supported the activity of papal legate Gentile Portino da Montefiore, who was sent to Hungary in 1308 with the primary task of assuring the Angevins the Hungarian throne.
When the legate arrived to Split (Spalato) at the end of May, he sent a letter to Vincent, in which he stated that he reserves the right to bestow all church benefice above worth 10 marks exclusively to himself.
[16] Vincent attended that general diet, summoned by Gentile in the Dominican monastery of Pest on 27 November 1308, which elected Charles king.