Croats of Bosnia and Herzegovina Dalmatian Croatia formed a united Croatian kingdom, which included Dalmatia and part of Bosnia and Herzegovina, Pannonia (eastern Slavonia and northeastern Bosnia), and Savia (western Slavonia). In 1102 Croatia entered into a union with the Kingdom of Hungary. After this, Bosnia, which was earlier part of the Kingdom of Croatia, started to disassociate with Croatia. At first, Bosnia became a separate principality under Ban Kulin who managed to solidify Bosnian autonomy at the expense of more powerful neighbours, but only in the 14th century did Bosnia become a formidable state. In the 14th century, King Tvrtko I conquered part of
Demographic history of Bosnia and Herzegovina an enclave in the vast region of Bosnian Frontier. More intensified immigrations of the Muslim population were noticed in 1690 when they moved from Hungary and Slavonia to the region around the mountain of Majevica. In the Ottoman period, the Muslim population increased in number in Bosnia and Herzegovina somewhat due to immigrations of Muslims from the Sanjaks of Smederevo and Novi Pazar, and especially from some regions of Montenegro, Sjenica, and Pešter. Immigrations of the Turkish population from Asia Minor also had an impact upon the growth of the Muslim population in Bosnia and Herzegovina from the 15th to