II. Several COUNCILS or synods were held at Aquileia: in 381, against Palladius and Secundianus, the Arian bishops (Labbe, 2:978); in 556, against the 5th (Ecumenical council; in 698, on the “Three Chapter” question (q.v.);' at the same time the schism from Rome was ended (Labbe, vi); in 791, by Paulinus the metropolitan, fourteen canons were published; in 1184, against incendiaries and sacrilegious persons (Labbe, 10); in 1409, by the antipope Gregory XII, who here excommunicated his rivals Benedict and Alexander V (Labbe, 2, 2012). — Landon, Manual of Councils; Smith, Tables of Church Hist.