Tauresium is an archaeological site in North Macedonia, best known as the birthplace of Byzantine Emperor Justinian I (ca. 482) and King Theodahad of the Ostrogoths (480).
Tauresium and the castle Baderiana were destroyed in an earthquake in 518 and the epicentre of the earthquake was in the nearby city of Skupi. As a gesture of gratitude to his birthplace, Justinian I rebuilt the city. According to the excavations that have been done so far, it is estimated that the oldest parts of Tauresium date from the 4th century and this oldest part is a castle with four towers known as Tetrapirgia.
References:The historical centre of Briançon is a strongly fortified town, built by Vauban to defend the region from Austrians in the 17th century. Its streets are very steep and narrow, though picturesque. Briançon lies at the foot of the descent from the Col de Montgenèvre, giving access to Turin, so a great number of other fortifications have been constructed on the surrounding heights, especially towards the east.
The Savoyards made two raids into French territory in 1691 and 1692. As a result, Vauban was dispatched to inspect the frontier defences, which had been ill-equiped to deal with the attack from Savoy. He returned to the area in 1700 to check on the progress that had been made since his first visit. When Vauban visited Briançon, work on the defences had already started under a local engineer, Monsieur d"Angrogne in 1692.