Question: What nationality is Stefan Vladislav's father?

Knowledge 1: Stefan Vladislav
Stefan Vladislav (– after 1264) was the King of Serbia from 1234 to 1243.He was the middle son of Stefan the First-Crowned of the Nemanjić dynasty, who ruled Serbia from 1196 to 1228.Radoslav, the eldest son of Stefan the First-Crowned, was ousted by the Serbian nobility due to increasing Epirote influence through his marriage alliance to Theodore Komnenos Doukas; Vladislav was appointed as his successor.During Vladislav's reign, his uncle Archbishop Sava went on a pilgrimage and died in Bulgaria while on his way home.Vladislav obtained the remains and buried them in the Mileševa monastery, which he had built intended to be his burial place.Serbia was politically aligned with Bulgaria at the time, since Vladislav was married to Beloslava, the daughter of Ivan Asen II.Vladislav secured Hum, a maritime province under attack by Hungarian crusaders.After the death of Ivan Asen II, there was unrest in Serbia.The Mongols, led by Kadan, invaded Hungary and devastated the Balkans, at which time the Serbian nobility rose up against Vladislav.In 1243, he abdicated in favour of his younger brother, but remained the ruler of Zeta.He was described as very energetic, reliable, and hot-tempered.The Serbian Orthodox Church venerates him as a saint on . [SEP] Knowledge 2: Stefan the First-Crowned
Stefan Nemanjić(Serbian Cyrillic:Стефан Немањић) or Stefan the First-Crowned (/ Stefan Prvovenčani,; around 1165 – 24 September 1228) was Grand Prince of Serbia from 1196, and the King of Serbia from 1217 until his death in 1228.He was the first Rascian king, and through his promotion of the Serbian Grand Principality into a kingdom and helping his brother Saint Sava in establishing the Serbian Church, he is regarded one of the most important of the Nemanjić dynasty.
Knowledge 1: Stefan Vladislav
Stefan Vladislav (– after 1264) was the King of Serbia from 1234 to 1243.He was the middle son of Stefan the First-Crowned of the Nemanjić dynasty, who ruled Serbia from 1196 to 1228.Radoslav, the eldest son of Stefan the First-Crowned, was ousted by the Serbian nobility due to increasing Epirote influence through his marriage alliance to Theodore Komnenos Doukas; Vladislav was appointed as his successor.During Vladislav's reign, his uncle Archbishop Sava went on a pilgrimage and died in Bulgaria while on his way home.Vladislav obtained the remains and buried them in the Mileševa monastery, which he had built intended to be his burial place.Serbia was politically aligned with Bulgaria at the time, since Vladislav was married to Beloslava, the daughter of Ivan Asen II.Vladislav secured Hum, a maritime province under attack by Hungarian crusaders.After the death of Ivan Asen II, there was unrest in Serbia.The Mongols, led by Kadan, invaded Hungary and devastated the Balkans, at which time the Serbian nobility rose up against Vladislav.In 1243, he abdicated in favour of his younger brother, but remained the ruler of Zeta.He was described as very energetic, reliable, and hot-tempered.The Serbian Orthodox Church venerates him as a saint on . [SEP] Knowledge 2: Marjana Maraš
Marjana Maraš is a politician in Serbia.She has served in the National Assembly of Serbia since 2014 as a member of the Socialist Party of Serbia.
Knowledge 1: Stefan Vladislav
Stefan Vladislav (– after 1264) was the King of Serbia from 1234 to 1243.He was the middle son of Stefan the First-Crowned of the Nemanjić dynasty, who ruled Serbia from 1196 to 1228.Radoslav, the eldest son of Stefan the First-Crowned, was ousted by the Serbian nobility due to increasing Epirote influence through his marriage alliance to Theodore Komnenos Doukas; Vladislav was appointed as his successor.During Vladislav's reign, his uncle Archbishop Sava went on a pilgrimage and died in Bulgaria while on his way home.Vladislav obtained the remains and buried them in the Mileševa monastery, which he had built intended to be his burial place.Serbia was politically aligned with Bulgaria at the time, since Vladislav was married to Beloslava, the daughter of Ivan Asen II.Vladislav secured Hum, a maritime province under attack by Hungarian crusaders.After the death of Ivan Asen II, there was unrest in Serbia.The Mongols, led by Kadan, invaded Hungary and devastated the Balkans, at which time the Serbian nobility rose up against Vladislav.In 1243, he abdicated in favour of his younger brother, but remained the ruler of Zeta.He was described as very energetic, reliable, and hot-tempered.The Serbian Orthodox Church venerates him as a saint on . [SEP] Knowledge 2: Dragan Tomić
Dragan Tomić( born 1936 in Pristina, Kingdom of Yugoslavia) is a Serbian politician, a member of the Socialist Party of Serbia, who served as the President of the National Assembly of Serbia, holding the position from 1994 to 2001.After the election of Slobodan Milošević on the position of President of Serbia and Montenegro, which led to Milošević's resignation from the Serbian Presidency, he next became acting President of Serbia by position, according to the Constitution of Serbia, from 23 July to 29 December 1997.In the second cabinet of the Prime Minister Mirko Marjanović, Tomić served as the Deputy Prime Minister of Serbia, from 1998 to 2000.He was preceded by Slobodan Milošević and succeeded by Milan Milutinović.

Answer: Serbian Grand Principality