The degree of Croatian autonomy fluctuated from time to time, as well as its borders. According to Daniel Power, Croatia became part of Hungary in the late 11th and early twelfth century. According to the country study on Hungary Croatia was never assimilated into Hungary; rather, it became an associate kingdom administered by a ban, or civil governor.
The degree of Croatian autonomy changed over time, as did its borders. Daniel Power states that Croatia joined Hungary in the late 11th and early 12th centuries.  A country study on Hungary indicates that Croatia was never fully absorbed into Hungary; instead, it became an associate kingdom under a ban or civil governor.