The priority was to gain the approval of the Pope. Initially, Wilhelm and his supporters hoped that the Pope had not confirmed Buxhoeveden to the position, but soon they found out, that this had happened already in the summer of 1532.
Kõige tähtsam oli aga enda kinnitada laskmine paavsti poolt. Esialgu loodeti Wilhelmi leeris, et paavst pole jõudnud Buxhoevedeni veel kinnitada, kuid peagi selgus, et see sai kinnituse juba 1532. aasta suvel.