The Italian peninsula, expanding the European continent in the Mediterranean basin, over the centuries was a crossroads of migrations of people who met and clashed, giving rise to fertile cultural exchanges.
The military, commercial, religious etc, identities of different populations grafted their own peculiarities on the cultural traditions of Greek-Latin matrix cultivated in monasteries and then in universities, and over the centuries they shaped modern Europe on the ground of the Roman Empire.
After their deaths, as the archbishop of Milano the first (+397), and as the bishop of Hippo the second (+430), a singular post-mortem destiny brought them together again
In fact, about in 725 the Lombard king Liutprand moved the body of the African bishop to Pavia (the capital of his kingdom), and here it is preserved in the basilica of St. Peter in the golden sky, while the body of Saint Ambrose is preserved in the nearby Milano, in the Basilica of Sant’Ambrogio.