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