| Year | Events | Archaeological Remains |
| baths of Justinianus | ||
| Around 400 | Visigoths attack and sack the city | |
| 408-450 | Reconstruction under Theodosius II. | |
| 458 | Philocaris, bishop of Byllis participates in a concile. | many churches in a small area |
| cathedral with atrium and galleries | ||
| 482 and later | episcopal complex | |
| 547-551 | First attacks of Slaves, city destroyed | |
| 552-565 | Reconstruction under Justinianus I | 2nd fortification wall is built, making the fortified area smaller. It is called Victorinus wall, named after the general who carried out the works at the order of Emperor Justinianus. |
| 586 | Second attack of Slaves. City is abandoned. | |
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