Vicar of Christ
Vatican I
First Vatican Council
papacy
Holiness
Pope Boniface VIII
Boniface VIII
Benedetto Caetani
popeling
popehood
cardinal-nephew
antipapism
popedom
ultramontane
rescript
Apostolicship
provisor
Pope Clement XI
Clement XI
Giovanni Francesco Albani
Lotario di Segni
ecumenical council
Pope Innocent III
papolater
papabile
Innocent III
preconization
Papal States
order of Saint Benedict
Monsignor
Benedictine order
Otho
errancy
Constantinople
Sistine Chapel
Urban II
Pope Urban II
Fourth Council of Constantinople
Second Council of Constantinople
Giovanni Maria Mastai-Ferretti
Odo
Pius IX
Giovanni Mastai-Ferretti
indulgencer
Odo of Lagery
Otho of Lagery
Pope Pius IX
papaphobia
Benedict
Gregory