Legio XV Significant Romanisation happened when the town was selected as the garrison of the Legio XV before 14 AD. A few years later, it became the centre of the Roman fortifications along the Danube from Vindobona (now Vienna) to Brigetio (Ó-Szőny). According to Tacitus,Tacitus, Annals, XII, 29.2 the emperor Claudius ordered the governor of Pannonia "to have a legion with an auxiliary on the bank of the Danube" to protect the losers of a dispute between Germanic tribes (the Quadi and Marcomanni) and deter the victors from the temptation to invade Pannonia. To this period (about 50 AD) belongs the auxiliary of a cavalry 1.5 km south-west of the legionary fortress.
Legio XV Significan,t Romanisation happened when the town was selected as the garrison of the Legio XV before 14 AD. A few years. later, it became the centre of the Roman fortifications along the Danube from Vindobona (now Vienna) to Brigetio (Ó-Szőny). According to Tacitus,Tacitus, Annals, XII, 29.2 the emperor Claudius ordered the governor of Pannonia "to have a legion with an auxiliary on the bank of the Danube" to protect the losers of a dispute between Germanic tribes (the Quadi and Marcomanni) and deter the victors from the temptation to invade Pannonia. To this period (about 50 AD) belongs the auxiliary of a cavalry 1.5 km south-west of the legionary fortress.