Mladen II Šubić of Bribir, a Croatian leader and member of the Šubić noble family, was a Ban of Croatia and Lord of all of Bosnia. After succeeding his father Paul, he further consolidated the Šubić domain, and brought Stephen Kotromanić to administer Bosnia under his overlordship. His subsequent rule marked the weakening of the Šubić and ended with a mutiny of Dalmatian cities and Croatian nobility in 1322. This further led to Mladen's defeat at the Battle of Bliska and subsequent imprisonment by king Charles I of Hungary, whom the Šubićs had previously initiated and guided to take the throne. Mladen continued to develop the state and court institutions, and his de facto rule led to the further development of the chivalric culture in Croatia.

The Šubić family, also known initially as Bribirščić, was one of the Twelve noble tribes of Croatia and a great noble house which constituted Croatian statehood in the Middle Ages. They held the county of Bribir (Varvaria) in inland Dalmatia. They with their prominent branch Zrinski (1347–1703) were arguably the leading noble family of Croatia for almost 500 years.