The Council of Rome was a synod which took place in Rome in AD 382, under the leadership of Pope Damasus I, the then-Bishop of Rome. The only surviving conciliar pronouncement may be the Decretum Gelasianum that contains a canon of Scripture, which was issued by the Council of Rome under Pope Damasus in 382, and which is identical with the list given at the Council of Trent.
The previous year, the Emperor Theodosius I had appointed the candidate Nectarius as Archbishop of Constantinople. The bishops of the West opposed the election result and asked for a common synod of East and West to settle the succession of the see of Constantinople, and so the Emperor Theodosius, soon after the close of the First Council of Constantinople in 381, summoned the Imperial bishops to a fresh synod at Constantinople; nearly all of the same bishops who had attended the earlier synod re-assembled in the early summer of 382. On arrival they received a letter from the synod of Milan, inviting them to a great general council at Rome; they indicated that they must remain where they were, because they had not made any preparations for such long a journey; however, they sent three—Syriacus, Eusebius, and Priscian—with a joint synodal letter to Pope Damasus, Ambrose, archbishop of Milan, and the other bishops assembled in the council at Rome.
Jerome mentioned the synod twice, but only in passing.
The Oxford Dictionary of the Christian Church states:
A council probably held at Rome in 382 under St. Damasus gave a complete list of the canonical books of both the Old Testament and the New Testament (also known as the 'Gelasian Decree' because it was reproduced by Gelasius in 495), which is identical with the list given at Trent.
The Oxford Dictionary of the Christian Church also notes that "according to E. von Dobschütz, the Gelasian Decree is not a Papal work at all, but a private compilation which was composed in Italy (but not at Rome) in the early 6th cent. Other scholars, while accepting this date, think it originated in Gaul".