Third Lateran Council

The Entrance of Pope Alexander III and Emperor Frederick Barbarossa into Rome, fresco detail, Spinello Aretino, 1407, Palazzo Pubblico, Siena, Italy

The Third Lateran Council (A.D. 1179), was convoked by Pope Alexander III after the Battle of Legnano and the surrender of Emperor Frederick I. The primary object of the council was to end the nearly 20 year schism supported by the Emperor against Alexander. Image above links to Tanner translation of the Council decrees. ISBN recommendation: 0-87840-490-2