Hrvoje left behind his son Balša who bore the title of Prince of the Lower Lands, but he died in 1416 so the bulk of the Donji Kraji went to his cousin Juraj Vojsalić.
Even before 1386, it is possible to see the effects of the Ottomans in medieval Bosnia, after numerous raids.
Events during the 1410s marked the beginning of their active engagement.
The Ottoman Empire supported the local nobility, led by Tvrtko II.
After the Lašvanian battle on Lašva river (in 1415), the Ottomans and Hungary became the most powerful factor in the local affairs.
Navigating between these two forces, bans and kings in Bosnia resisted pressures from both sides.
Juraj supported 1434 Bosnian King Tvrtko II against Sandalj Hranić in the civil war.

Juraj was succeeded by his son Peter.
The reign of Peter was marked by improved connections with The Pope who has repeatedly taken the Duke of Donji Kraji for protection, pointing out that he is the only one among the schismatic Bosnian rulers who has maintained true faith.
He actively supported Vladislav Hercegović in the fight against Stjepan Vukčić Kosača.
Peter was last mentioned as alive in a Venetian document from 1456.

Ottomans launched a surprise attack on Bosnia, when they re-directed their troops from their supposed attack towards Hungary.
The fortresses were quickly overrun, and Stephen Tomašević fled from Jajce towards Donji Kraji, while Queen Catherine fled to the coast.
The Ottomans caught up to the king's forces at the fortress of Ključ on the Sana, where they imprisoned him and brought him back to Jajce, where he was beheaded in front of Mehmed the Conqueror.
Hrvoje left behind his son Balša who bore the title of Prince of the Lower Lands, but he died in 1416 so the bulk of the Donji Kraji went to his cousin Juraj Vojsalić. Even before 1386, it is possible to see the effects of the Ottomans in medieval Bosnia, after numerous raids. Events during the 1410s marked the beginning of their active engagement. The Ottoman Empire supported the local nobility, led by Tvrtko II. After the Lašvanian battle on Lašva river (in 1415), the Ottomans and Hungary became the most powerful factor in the local affairs. Navigating between these two forces, bans and kings in Bosnia resisted pressures from both sides. Juraj supported 1434 Bosnian King Tvrtko II against Sandalj Hranić in the civil war.
Juraj was succeeded by his son Peter. The reign of Peter was marked by improved connections with The Pope who has repeatedly taken the Duke of Donji Kraji for protection, pointing out that he is the only one among the schismatic Bosnian rulers who has maintained true faith. He actively supported Vladislav Hercegović in the fight against Stjepan Vukčić Kosača. Peter was last mentioned as alive in a Venetian document from 1456. 
Ottomans launched a surprise attack on Bosnia, when they re-directed their troops from their supposed attack towards Hungary. The fortresses were quickly overrun, and Stephen Tomašević fled from Jajce towards Donji Kraji, while Queen Catherine fled to the coast. The Ottomans caught up to the king's forces at the fortress of Ključ on the Sana, where they imprisoned him and brought him back to Jajce, where he was beheaded in front of Mehmed the Conqueror.
Donji Kraji