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He is excommunicated by Pope Innocent III because he denied to help him in the Cathar Crusade. (MRP)
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Pope Innocent III launches a crusade against the Cathars (Albigensians). (MRP)
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A city in southern France called Beziers was completely sacked and the people were massacred in one of the first battles of this Crusade. (MRP)
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After that raid on Beziers, they went to the city of Carcassonne which was believed to be held by the Cathars. (MRP)
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Raymond-Roger de Trencavel was taken prisoner by the Crusaders while he was trying to negotiate about the water supply to the city. (MRP)
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The city finally surrenders to the Crusaders. (MRP)
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140 people in the town of Minerve were burnt at the stake because they didn't convert. (MRP)
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The Crusaders attack the city of Termes. (MRP)
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The city of Termes finally loses to the Crusaders after the battle lasted from August. (MRP)
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Most of modern-day Latvia has been converted to Christianity. (MRP)
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Raymond of Toulouse lead a Cathar attack that gained the city of Castelnaudary and thirty more Crusader owned towns. (MRP)
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This is the Battle of Muret, where Peter II of Aragon gets killed by the Crusaders. (MRP)
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Simon de Montfort captures the Cathar castles of Domme and Monfort. This ended this portion of the Cathar Crusade. (MRP)
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The Fifth Crusade starts. (MRP)
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The Fourth Lateran Council decides to help fund the Fifth Crusade. (MRP)
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Raymond of Toulouse and his son gather Cathars and start to rebel against the Crusaders. (MRP)
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Raymond of Toulouse captures the city of Toulouse from the Crusaders. (MRP)
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The Crusaders attack Mount Tabor. (MRP)
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The Crusaders take the French Catharian city of Marmande. (MRP)
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Frederick is crowned as the Holy Roman Emperor by Pope Honorius III. (MRP)
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The Fifth Crusade ends as a failure to the Christian Crusaders. (MRP)
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Launched by King Louis XI
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Emperor Federick II recovers Jerusalem
