The cornerstone of the present-day southern part of the fortress was laid on 18 October 1692 by Charles Eugène de Croÿ.

Examining remains from the early Bronze Age (c. 3000 BC), ramparts were discovered which testify that already at that time a fortified settlement existed at the Petrovaradin site.

The first larger fortifications were created with the arrival of the Romans who built the fortress (Cusum) which was a part of the fortified borders (limes) along the Danube.

The turning point in the history of the area came in 1235 AD when King Béla IV of Hungary brought a group of the Order of Cistercians from France.

The works in the field were also led by the engineer Colonel Michael Wamberg who died in 1703 and was buried in the church of the Franciscan monastery which today serves as part of the present-day military hospital.

The victory of the Austrians under the command of Prince Eugene of Savoy at Senta on September 11, 1697 resulted in creating the conditions for the conclusion of the peace at Karlowitz in 1699.

The Austrians were led by Prince Eugene and the Turks were under the command of Grand Vizier Silahdar Damat Ali Pasha.

When these works were under way, engineer Major Albrecht Heinrich Schroeder proposed a branched system of anti-mine tunnels to the High Military Council in early 1764.

During his visit to the Petrovaradin Fortress in May, 1768, Emperor Joseph II observed a military exercise with mine equipment carried out in his honor.

During these years, the old fortresses at Belgrade, Osijek, Karlovac and Slavonski Brod which were built in the 17th century were razed because they had lost their military significance.