Mladen III Šubić Bribirski

Mladen III Šubić
Gravestone in the Trogir Cathedral.
Predecessor	Mladen II
Successor	Jelena Šubić
Reign	1315 - 1348
Born	c. 1315 Dalmatia (modern Croatia)
Died	1348
Burial	Trogir Cathedral
House	Šubić
Father	George II

Mladen III Šubić (Croatian: Mladen III. Šubić) (c. 1315 – Trogir, 1 May 1348) was a member of the Croatian Šubić noble family, who ruled from Klis Fortress. He was in possession of Klis, Omiš and Skradin.

Mladen III Šubić was (probably oldest) son of Juraj II Šubić and grandson of Pavao I Šubić Bribirski, who was the most powerful Croatian noble at the end of the thirteenth century and beginning of the fourteenth century.

Mladen III Šubić had two children.

Mladen III ruled from Klis Fortress from 1330–1348, and was named ("shield of the Croats") by the people. He was the famous Šubić from Klis, where he married his sister Jelena Šubić (died c. 1378) to Regent of Bosnia Vladislav Kotromanić. Jelena Šubić gave birth to the first Bosnian king, Tvrtko I. Regardless of the diplomatic and dynastic success, Mladen could not save Šubić family from its fall, because he was almost only one left to defend it. Before the death he married Serbian Jelena, half-sister of the Serbian ruler Dušan, but even this relationship couldn't help Šubić's family.

Dux Mladen III Šubić died in 1348, from the plague, and is buried in the Cathedral of St. Lawrence in Trogir.

After Mladen's death, a great political and military struggle for control over Klis Fortress arose.