The territory of native tribes of the northern Dunántúl (Trans-danubia) region, which became dependent upon Emperor Augustus, was annexed by the Roman army during the late-Tiberio -Claudian period. First military camps along the Danube, in the Dunakanyar, were developed in Solva (present day Esztergom] and nearby Aquincum (today Víziváros, Budapest) somewhat earlier than the middle of the lst century AD.
Initiating from the second half of the lst century and during the beginning of the 2nd, the chain of riparian garrisons between the former two camps was growing denser, thus concluding the establishment of the auxiliary forts of Cirpi (Dunabogdány), and subsequently of Ulcisia (Szentendre). The strategic importance of the Dunakanyar was, however, increased in the 4th century indeed.
Based on the archaeological excavations being conducted in Dunakeszi, we can create a more accurate image of how a fortlet -which can be classified as a late Román fortified port on the basis of its plan - might have looked like. The core area of suchlike symmetrical fortification was represented by a multistorey central tower, which was built on top of the bank, the highest spot of the surrounding.
During the construction of a private residency in 2002, the well-forgotten walls were revealed accidentally; due to their importance, archaeological investigations of those are being conducted by the Hungarian National Museum. The owner of the house, Attila Hirschberg - as opposed to the Hungarian habits, thus setting an example - did not regard the discovery of Roman ruins as a burden; instead, he financed the extra expenditures of the reconstuctions of walls and the corner tower revealed in his basement and opened it for the public.