After the Ottoman conquest in the 15th and 16th centuries, large migrations of Serbs (roughly grouped into magnates and distinguished themselves as warriors and diplomats) followed into the Pannonian Plain.
After the Ottoman conquest in the 15th and 16th centuries, large migrations of Serbs followed into the Pannonian Plain. The nobility (Serbian: vlastela, vlastelinstvo or plemstvo) were roughly grouped into magnates (velikasi or velmoze) and the lesser nobility (vlastelicici). 
