Who was King Tomislav and why was his reign important to Croatia?

King Tomislav (reigned c. 910–928) was a pivotal ruler in the history of Croatia. His reign is significant because he transformed the Croatian state into a powerful military force.1

During his rule, the independent Croatian state, which had developed in northern Dalmatia during the 9th century, expanded to incorporate Croatia proper and Slavonia. Tomislav’s leadership solidified the foundations of the kingdom, allowing Croatia to maintain its independence under native kings until 1102.1