In 1102 , during the reign of King Coloman of Hungary , the Kingdom of Croatia entered a dynastic union with the Kingdom of Hungary .
Thereby Kingdom of Croatia became an autonomous kingdom within Hungary and subject to the Hungarian Crown .
In 1102 , during the reign of King Coloman of Hungary , the Kingdom of Croatia entered a dynastic union with the Kingdom of Hungary , and thereby Croatia became an autonomous kingdom within Hungary and subject to the Hungarian Crown .