The king of Poland, Casimir IV, did not accept the choice of Tüngen as bishop. He instead nominated Wincenty Kiełbasa, the bishop of Chełmno (Kulm) and administrator of the Poznań diocese, as the new bishop of Warmia. The Warmia chapter accepted the king's will, entrusting Kiełbasa with temporary administration of the Warmia diocese at Malbork (Marienburg) Sejmik) on 1 December 1467. Tüngen did not withdraw his candidacy, however, and soon the papal provision strengthened Tüngen's position. In September 1469, Kiełbasa withdrew his claim to the Warmia bishopric. One year later, Tüngen unofficially arrived in Warmia.