Question: Where was the father of Balša Hercegović born?

Knowledge 1: Balša Hercegović
Balša Hercegović (1455) was the titular "Duke of St. Sava" (dux sancti Save), as son of Vladislav Hercegović, the "Duke of Saint Sava", sprung from the marriage to Byzantine princess Anna Kantakouzene.Historian D. Lovrenović noted that it was possible that he was Jelena Nelipić's son.Some time after 1455, Vladislav sent Anna and Balša and his niece Mara to live in the Republic of Ragusa.Balša's brother was Petar.His father was given the estate of Kalnik near Križevci, Croatia in 1469 by Matthias Corvinus, where Balša seems to have retired. [SEP] Knowledge 2: Vladislav Hercegović
Vladislav Hercegović (1426 or 1427 – 1489) was the "Duke of Saint Sava", succeeding his father Stjepan Vukčić in 1466.The Kosača noble family held lands in the region of Herzegovina.Vladislav received his father's land and the title of "herzog".During his father's reign he is known to have interfered with his affairs.After 1453 he was frequently in the service of the Ottoman Empire, the Republic of Venice and the Hungarian-Croatian king Matthias Corvinus.Corvinus granted him the forts of Velika Kalnik and Mali Kalnik near Križevci.As an Ottoman vassal (after 1469) he took part in the capture of the town of Počitelj on the river Neretva in 1472 and in battles against the Vlatković's of that region.He succeeded in escaping Ottoman rule until 1480 when he was defeated and retreated to Herceg Novi.When Herceg Novi was captured by the Ottomans in the year 1483, Vladislav retreated to the island of Rab under Venetian rule where he would die.He married Anna Kantakouzene, one of the five known daughters of George Palaiologos Kantakouzenos, in 1453 or 1454.A surviving letter from King Alfonso of Naples and Aragon to Vladislav's father Stjepan dated 5 April 1455 congratulates the latter that two of his sons are married: one to the niece of the Despot of Serbia(who would be Anna Kantakouzene), and the other to the sister of the Count of Cilly.At some time after this Vladislav sent Anna with his son Balša and niece Mara to live in the Republic of Ragusa (modern Dubrovnik).His brother was Stjepan Hercegović, who converted to Islam in 1470, became known as Hersekzade Ahmed Pasha, and became a five-time grand vizier of the Ottoman Empire.His son, Balša, was the titular "Duke of St. Sava" (dux sancti Save).
Knowledge 1: Aleksa Đurašević
Aleksa Đurašević Crnojević( 1413 – 27), known as Lješ( Љеш) was the lord of Paštrovići( a coastal tribe) of the Lordship of Zeta and a voivode of the Serbian Despotate, alongside his older brother Đurađ.Đurađ and his brother Aleksa( Lješ) were lords of the territory of Paštrovići( Luštica and hills above Kotor and Budva) during the reign of Balša III.The Đurašević family was a branch of the Kalođurđević family.Its members held the most distinct positions in the court of Balša III.After the death of Balša III they refused Venetian invitations to switch sides and to accept Venetian suzerainty remaining loyal to new lord of Zeta, Serbian Despot Stefan Lazarević.They controlled 10 salt ponds in Grbalj valley near Kotor.Đurađ and his brother Aleksa built the Kom Monastery in the period between 1415 and 1427, when Upper Zeta was held by the Crnojevići.On 10 March 1420 Venetians promised to appoint Đurađ and his brother Aleksa( Lješ) as governors of Budva. [SEP] Knowledge 2: Đurađ Đurašević
Đurađ Đurašević Crnojević( 1413–1435) was the lord of Paštrovići( a coastal tribe) of the Lordship of Zeta and a voivode of the Serbian Despotate, alongside his younger brother Aleksa( Lješ).Đurađ and his brother Aleksa( Lješ) were lords of the territory of Paštrovići( Luštica and hills above Kotor and Budva) during the reign of Balša III.The Đurašević family was a branch of the Kalođurđević family.Its members held the most distinct positions in the court of Balša III.Đurađ was the head of the family.Đurađ was one of the witnesses listed in the charter issued by Balša III when he founded a church of the Praskvica Monastery in 1413.Đurađ's son and Aleksa Paštrović, an envoy of Sandalj Hranić, were also present.Đurašević was elected as a witness and maybe the executor of the charter of Balša III because at that time he ruled over Paštrovići, Luštica and the hills above Kotor and Budva.After the death of Balša III they refused Venetian invitations to switch sides and to accept Venetian suzerainty remaining loyal to new lord of Zeta, Serbian Despot Stefan Lazarević.They controlled 10 salt ponds in Grbalj valley near Kotor.Đurađ and his brother Aleksa built the Kom Monastery in the period between 1415 and 1427, when Upper Zeta was held by the Crnojevići.On 10 March 1420 Venetians promised to appoint Đurađ and his brother Aleksa( Lješ) as governors of Budva.Đurađ Đurašević was a member of the Crnojević noble family.He had four sons: Đurašin Đurašević, Gojčin Crnojević, Stefan( Stefanica) Crnojević and fourth son with unknown name and historical role.
Knowledge 1: Balša Hercegović
Balša Hercegović (1455) was the titular "Duke of St. Sava" (dux sancti Save), as son of Vladislav Hercegović, the "Duke of Saint Sava", sprung from the marriage to Byzantine princess Anna Kantakouzene.Historian D. Lovrenović noted that it was possible that he was Jelena Nelipić's son.Some time after 1455, Vladislav sent Anna and Balša and his niece Mara to live in the Republic of Ragusa.Balša's brother was Petar.His father was given the estate of Kalnik near Križevci, Croatia in 1469 by Matthias Corvinus, where Balša seems to have retired. [SEP] Knowledge 2: Aleksa Đurašević
Aleksa Đurašević Crnojević( 1413 – 27), known as Lješ( Љеш) was the lord of Paštrovići( a coastal tribe) of the Lordship of Zeta and a voivode of the Serbian Despotate, alongside his older brother Đurađ.Đurađ and his brother Aleksa( Lješ) were lords of the territory of Paštrovići( Luštica and hills above Kotor and Budva) during the reign of Balša III.The Đurašević family was a branch of the Kalođurđević family.Its members held the most distinct positions in the court of Balša III.After the death of Balša III they refused Venetian invitations to switch sides and to accept Venetian suzerainty remaining loyal to new lord of Zeta, Serbian Despot Stefan Lazarević.They controlled 10 salt ponds in Grbalj valley near Kotor.Đurađ and his brother Aleksa built the Kom Monastery in the period between 1415 and 1427, when Upper Zeta was held by the Crnojevići.On 10 March 1420 Venetians promised to appoint Đurađ and his brother Aleksa( Lješ) as governors of Budva.

Answer: Herzegovina