The Roman Lapidarium is located between downtown Szentendre and Road 11. For over 400 years, from the second half of 1st century AD, the town played an important strategic role in the Danube bend as it was one of the most endangered parts of the limes, the border of Pannonia. A dense line of encampments and watchtowers protected the limes; a significant military power was present in the area that is today Szentendre, then called Ulcisia Castra. The craftsmen and merchants working for the military lived in the area of the canabæ west and south of the camps. The population of the Roman period was buried along the “limes-road,” the main road along the Danube leading towards Aquincum, but later a small, Early Christian tomb chapel was built, too, on the premises of the late Roman cemetery.
Source: http://www.muzeumicentrum.hu/en