d Pope _Leo_ I. in his decretal Epistle
to _Anastasius_ Bishop of _Thessalonica_: _Singulis autem Metropolitanis
sicut potestas ista committitur, ut in suis Provinciis jus habeant
ordinandi; ita eos Metropolitanos a te volumus ordinari; maturo tamen &
decocto judicio_.

_Occidental Illyricum_ comprehended _Pannonia prima_ and _secunda_,
_Savia_, _Dalmatia_, _Noricum mediterraneum_, and _Noricum ripense_; and
its Metropolis was _Sirmium_, till _Attila_ destroyed this city. Afterwards
_Laureacum_ became the Metropolis of _Noricum_ and both _Pannonias_, and
_Salona_ the Metropolis of _Dalmatia_. Now [5] the Bishops of _Laureacum_
and _Salona_ received the _Pallium_ from the Pope: and _Zosimus_, in his
decretal Epistle to _Hesychius_ Bishop of _Salona_, directed him to
denounce the Apostolic decrees as well to the Bishops of his own, as to
those of the neighbouring Provinces. The subjection of these Provinces to
the See of _Rome_ seems to have begun in _Anemius_, who was ordained Bishop
of _Sirmium_ by _Ambrose_ Bishop of _Millain_, and who in the Council of
_Aquileia_ under Pope _Damasus_, A.C. 381, declared his sentence in these
words: _Caput Illyrici non nisi civitas Sirmiensis: Ego igitur illius
civitatis Episcopus sum. Eum qui non confitetur filium Dei aeternum, &
coeternum patri, qui est sempiternus, anathema dico_. The next year
_Anemius_ and _Ambrose_, with _Valerian_ Bishop of _Aquileia_, _Acholias_
Bishop of _Thessalonica,_ and many others, went to the Council of _Rome_,
which met for overruling the _Greek_ Church by majority of votes, and
exalting the authority of the Apostolic See, as was attempted before in the
Council of _Sardica_.

_Aquileia_ was the second city of the _Western Empire_, and by some called
the second _Rome_. It was the Metropolis of _Istria_, _Forum Julium_, and
_Venetia_; and its subjection to the See of _Rome_ is manifest by the
decretal Epistle of _Leo_ I. directed to _Nicetas_ Bishop of this city; for
the Pope begins his Epistle thus: _Regressus ad nos filius meus Adeodatus
Diaconus Sedis nostrae, dilectionem tuam poposcisse memorat, ut de his a
nobis authoritatem Apostolicae Sedis acciperes, quae quidem magnam
difficultatem dijudicationis videntur afferre_. Then he sets down an answer
to the questions proposed by _Nicetas_, and concludes thus: _Hanc autem
Epistolam nostram, quam ad consultationem tuae fraternitatis emisimus, ad
omnes fratres & comprovinciales tuos Episcopos facies perveni