Fortunatus, and commanded him to send Fortunatus to Rome to be judged there:  four years after [10] he appointed the Bishops of Millain and Ravenna to hear the cause of one Maximus; and two years after, viz.  A.C. 601, when Constantius was dead, and the people of Millain had elected Deusdedit his successor, and the Lombards had elected another, [11] Gregory wrote to the Notary, Clergy, and People of Millain, that by the authority of his Letters Deusdedit should be ordained, and that he whom the Lombards had ordained was an unworthy successor of Ambrose:  whence I gather, that the Church of Millain had continued in this state of subordination to the See of Rome ever since the days of Ambrose; for Ambrose himself acknowledged the authority of that See. Ecclesia Romana, [12] saith he, hanc consuetudinem non habet, cujus typum in omnibus sequimur, & formam.  And a little after:  In omnibus cupio sequi Ecclesiam Romanam.  And in his Commentary upon 1 Tim. iii. Cum totus mundus Dei sit, tamen domus ejus Ecclesia dicitur, cujus hodie rector est Damasus.  In his Oration on the death of his brother Satyrus, he relates how his brother coming to a certain city of Sardinia, advocavit Episcopum loci, percontatusque est ex eo utrum cum Episcopis Catholicis hoc est cum Romana Ecclesia conveniret? And in conjunction with the Synod of Aquileia A.C. 381, in a synodical Epistle to the Emperor Gratian, he saith:  Totius orbis Romani caput Romanam Ecclesiam, atque illam sacrosanctam Apostolorum fidem, ne turbari sineret, obsecranda fuit clementia vestra; inde enim in omnes venerandae communionis jura dimanant.  The Churches therefore of Aquileia and Millain were subject to the See of Rome from the days of the Emperor Gratian. Auxentius the predecessor of Ambrose was not subject to the see of Rome, and consequently the subjection of the Church of Millain began in Ambrose.  This Diocese of Millain contained Liguria with Insubria, the Alpes Cottiae and Rhaetia; and was divided from the Diocese of Aquileia by the river Addua.  In the year 844, the Bishop of Millain broke off from the See of Rome, and continued in this separation about 200 years, as is thus related by [13] Sigonius:  Eodem anno Angilbertus Mediolanensis Archiepiscopus ab Ecclesia Romana parum comperta de causa descivit, tantumque exemplo in posterum valuit, ut non nisi post ducentos annos Ecclesia Mediolanensis ad Romanae obedientiam auctoritatemque redierit.