Links to actual sources, for those interested in more than rumors:

https://en.wikipedia.org/wiki/Unam_sanctam https://en.wikipedia.org/wiki/Romanus_Pontifex https://en.wikipedia.org/wiki/Aeterni_regis https://www.ewtn.com/catholicism/library/bull-of-the-convocation-of-the-holy-ecumenical-council-of-trent-1501