Agreed territorial changes were substantial, and also favorable for the Ottoman side, since Habsburgs had to cede three regions: the Banat of Craiova (modern Oltenia), the Kingdom of Serbia with Belgrade, and Bosnian section of Posavina, thus placing the newly defined Habsburg-Ottoman border on the rivers Sava and Danube.
[1] During the final stages of the Austro-Turkish War (1737–1739), the main Habsburg army, commanded by field marshal Wallis suffered a strategic defeat at the Battle of Grocka (21–22 July, 1739), and retreated into the Belgrade Fortress, that was soon besieged by the Ottoman forces.
On 1 September, Neipperg agreed to sign a preliminary peace agreement with the Ottomans, and then dispatched the news to the Emperor on the next day.
[9][10] After the formal ratification of both peace treaties, diplomatic instruments were exchanged and the final convention was signed in Constantinople on 28 December 1739, also trough the French mediation, thus concluding the war.
In the meantime, both count Neipperg and field marshal Wallis were arrested by the Habsburg state authorities and accused for the unfavorable outcome of negotiations.