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
First League of Bosnia and Herzegovina of Bosnia and Herzegovina" and "First League of Herzeg-Bosnia" respectively: First League of Bosnia and Herzegovina The First League of Bosnia and Herzegovina () operated by the Football Association of Bosnia and Herzegovina (abbreviation: "N/FSBiH") was the top tier football league in Republic of Bosnia and Herzegovina, and after signage of "Dayton Peace Agreement" of Bosnia and Herzegovina, until creation of Premier League of Bosnia and Herzegovina in 2000 (formal unification of the country's football organizations as N/FSBiH happened in 1997). League changed format and name several times since its inception and the first 1994–95 season. N/FSBiH and its competition