Parts of the Vojvodina region were included into the medieval Kingdom of Hungary in the 10th century .
Hungarians then began to settle in the region , which before that time was mostly populated by the West Slavs .
Parts of the Vojvodina region were included into the medieval Kingdom of Hungary in the 10th century , and Hungarians then began to settle in the region , which before that time was mostly populated by the West Slavs .