1150 - Became Cardinal Deacon of the Title of Santi Cosma e Damiano.
1153 - Became Papal Cgacellor and leader of the cardinals opposed to Frederick I Barbarossa. Participated in the negotiations for restoring peaceful relations which is named The Treaty of Benevento.
1159 - Became Pope on September 7, 1159.
1179 - Led the Third Council of the Lateran.
1181 - He excommunicated William I of Scotland and died on August 20, 1181.
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