That pope of this name was imprisoned at Anagni by Guillaume de Nogaret, and he earlier forbade taxation of the clergy in the bull Clericis Laicos as part of his feud with Philip IV of France.
One briefly-ruling pope of this name was murdered by the holder of the Cadaver Synod, Stephen VI. Another pope of this name was a puppet of the Crescentii family who ordered the murders of Benedict VI and John XIV. A pope of this name crowned Ladislaus of Naples and succeeded Urban VI as the opponent of antipope Clement VII. One of them forced the resignation of his predecessor Clement V, and objected to the imprisonment of Bernard Saisset with Ausculta Fili. That pope of this name was imprisoned at Anagni by Guillaume de Nogaret, and he earlier forbade taxation of the clergy in the bull Clericis Laicos as part of his feud with Philip IV of France. For 10 points, give this papal name whose eighth holder asserted the supremacy of the spiritual over the secular with the bull Unam Sanctam.
One briefly-ruling pope of this name was murdered by the holder of the Cadaver Synod, Stephen VI.
Boniface