Innocent was now safe and out of the reach of Frederick II. In a sermon on 27 December 1244, he summoned as many bishops as could get to Lyon (140 bishops eventually came) to attend what became the 13th General (Ecumenical) Council of the Church, the first to be held in Lyon.Ioannes Dominicus Mansi, Sacrorum Conciliorum nova et amplissima collectio Tomus 23 (Venice 1779), pp. 606–686. The bishops met for three public sessions: 28 June, 5 July, and 17 July 1245. Their principal purpose was to win over the Emperor Frederick II.
Innocent was now safe and out of the reach of Frederick II In a sermon on 27 December 1244 he summoned as many bishops as could get to Lyon (140 bishops eventually came) to attend what became the 13th General (Ecumenical) Council of the Church the first to be held in LyonIoannes Dominicus Mansi Sacrorum Conciliorum nova et amplissima collectio Tomus 23 (Venice 1779) pp 606–686 The bishops met for three public sessions 28 June 5 July and 17 July 1245 Their principal purpose was to win over the Emperor Frederick II