Pope Innocent III was the head of the Catholic Church and sovereign of the Papal States from 8 January 1198 until his death in 1216.
Detail of a fresco at the cloister Sacro Speco, c. 1219
Mosaic of Innocent III, c. 1205–1212
Innocent III launched the Albigensian Crusade against the Cathars.
The Fourth Crusade was a Latin Christian armed expedition called by Pope Innocent III. The stated intent of the expedition was to recapture the Muslim-controlled city of Jerusalem, by first defeating
Pope Innocent III
…Livonian Crusade against the Baltic and Finnic pagans of Livonia and the Albigensian Crusade against the Cathars in southern France. He organized the Fourth Crusade of 1202–1204, which ended in the sack of Constantinople. Although the attack on Constantinople went against his explicit orders, and the Crusaders were…
A 15th-century miniature depicting the conquest of Constantinople by the Crusaders in 1204
Venetian Navy landing in Constantinople, from a XV Century miniature
The crusaders conquering the City of Zadar, painted by Tintoretto
Dandolo Preaching the Crusade by Gustave Doré