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.