Popes and Papal State

Popes List of Medieval Popes Gelasius I on Spiritual and Temporal Power, 494 Papal State (754-1870) The Development of the Papacy - Dr. Ellis.L. Skip Knox Papal States - Richard Hooker Papal States (encyclopedia.com) Palais des Papes - Avignon The Avignon Papacy, 1305-1378 - Prof. Lynn Harry Nelson St. Catherine of Siena (1347-1380) Ecumenical Councils (The First to the Twenty-first council) Ecumenical Councils Investiture Conflict of Investiture (1024-1125) Canonical investiture