Cardinal whatever-his-name-was

 is a character in I Shall Survive Using Potions! (Light Novel) series written by FUNA.

Background
Pope of Rueda was a leader of one of the religions on Verny. He was also one of the leaders in the Holy Land of Rueda until his religion was denounced by Celestine during the peace talks after the Holy Land of Rueda and the Aligot Empire attacked the Kingdom of Balmore.