What southern part of the Kingdom of Slavonia straddled the borderland of the Habsburg Monarchy?
Kingdom of Slavonia The Kingdom of Slavonia (Croatian: "Kraljevina Slavonija" ; German: "Königreich Slawonien" ; Latin: "Regnum Sclavoniae" ; Hungarian: "Szlavón Királyság" ) was a province of the Habsburg Monarchy and the Austrian Empire that existed from 1699 to 1868. The province included northern parts of present-day regions of Slavonia (today in Croatia) and Syrmia (today in Serbia and Croatia). The southern parts of these regions were part of the Slavonian Military Frontier, which was a section of the Military Frontier.
Sanjak of Segedin Sanjak of Segedin or Sanjak of Szeged (Turkish: Segedin Sancağı, Hungarian: Szegedi szandzsák, Serbian: Сегедински санџак) was an administrative unit of the Ottoman Empire formed in the 16th century. It was located in the Bačka (Bácska) region. Initially, it was part of the Budin Province, but in the 17th century it was included into Eğri Province. Administrative center of the Sanjak of Segedin was Segedin. It was captured by Austria between 1686-1688 and was left to Austria according to Treaty of Carlowitz in 1699.