question: When did Prince Vakhtang Of Imereti's father die?
context: [["Bagrat IV of Imereti", ["Bagrat IV( 1565 \u2013 died after 1590), of the Bagrationi Dynasty, was a king of Imereti from 1589 to 1590.", "According to the mainstream Georgian scholarship, Bagrat was a son of Prince Teimuraz and a grandson of King Bagrat III of Imereti.", "Professor Cyril Toumanoff considered Bagrat to have been a son of another Teimuraz, son of Prince Vakhtang of Imereti.", "Enthroned through the support of Giorgi II Gurieli, prince of Guria, Bagrat briefly ruled during the civil war in Imereti until being deposed by Simon I of Kartli in 1590."]], ["Theodred II (Bishop of Elmham)", ["Theodred II was a medieval Bishop of Elmham.", "The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997."]], ["Simon Bagrationi", ["Simon Bagration( born 1812) was a Georgian nobleman of the royal Bagrationi dynasty of Imereti branch.", "A son of Prince Rostom of Imereti and Princess Mkheidze, he was a direct male- line descendant of King Alexander V of Imereti.", "He was eight years old, when his father Rostom joined an anti-Russian rebellion of the Imeretian nobles and Simon had to share with Rostom a deportation to Russia proper.", "He married Princess Tatia Tsereteli( born 1813) and had 3 children with her:"]], ["Prince Bagrat of Imereti", ["Bagrat( 1741\u20131800) was a Georgian royal prince(\" batonishvili\") of the Bagrationi dynasty of Imereti.", "He was the common ancestor of all male- line descendants of the kings of Imereti, surviving into the 21st century.", "Prince Bagrat was a younger of King Alexander V of Imereti by his wife, Tamar n\u00e9e Abashidze.", "He was, thus, a younger brother of King Solomon I of Imereti and an uncle of Solomon II, the last reigning monarch of Imereti.", "Prince Bagrat was married to Mariam( 1741 \u2013 1820), daughter of Prince Giorgi, Eristavi of Guria.", "He had two children:"]], ["Prince Vakhtang of Imereti", ["Vakhtang (after 1495 \u2013 1548) was a Georgian prince of the Bagrationi dynasty of the Kingdom of Imereti, a younger son of King Alexander II of Imereti by his wife Tamar.", "Vakhtang was in opposition to his elder brother, King Bagrat III of Imereti and eventually had to flee to the Kingdom of Kartli, followed by many Imeretian noblemen.", "In 1512, Bagrat with his army crossed into Kartli, attacked Vakhtang at his base in Mokhisi and defeated him.", "Through the mediation of King David X of Kartli, the brothers reconciled and Vakhtang returned to Imereti.", "In the late 1540s, Vakhtang was placed at the head of an Imeretian detachment of 500 men sent by Bagrat in response to the cry for help from Rostom Gurieli, Prince of Guria, who was pressured by the Ottoman advance into his possessions around Batumi.", "Since Gurieli also appealed for help to Levan I Dadiani, Prince of Mingrelia, Vakhtang received a clandestine instruction from his brother not to allow any accord between Gurieli and Dadiani, who were defiant vassals of the king of Imereti.", "In the meantime, Gurieli succeeded in rolling back the Ottoman forces beyond the Chorokhi before the reinforcements arrived, but he failed to cross the swollen river, thus losing Gonio and Adjara to the enemy.", "His hopes that the Mingrelians and Imeretians would eventually come to aid were dashed.", "Through Vakhtang's intrigues, Dadiani, camping at the mouth of the Rioni at Poti, went back to Mingrelia; Vakhtang too, seeing an untenable situation of Gurieli, returned to Imereti.", "Vakhtang was married Princess Khvaramze (died 1528), daughter of George II of Kakheti.", "He had two sons:"]], ["Prince Simon of Imereti", ["Simon( born 1771) was a Georgian royal prince(\" batonishvili\") of the Bagrationi dynasty of Imereti.", "Simon was a natural son of Prince Bagrat of Imereti and grandson of King Alexander V of Imereti.", "He had one son, Rostom, whose descendants, in contrast to the scions of the Imeretian royals, were not recognized in princely rank by the Russian Empire after its annexation of Imereti in 1810.", "Instead, they were reduced to the rank of untitled nobility(\" aznauri\") with the surname of Bagrationi and are mentioned as such in the list of the Imeretian nobility confirmed by the tsar in 1850.", "As of 2015, they are the only surviving male- line descendants of the royal house of Imereti.", "Their familial village is Gvankiti, in Imereti."]], ["Constantine Imeretinsky", ["Prince Konstantine Konstantines Dze Bagration- Imeretinsky( 1827-1885) was a Georgian royal prince(\" batonishvili\") of the royal Bagrationi dynasty of Imereti.", "Son of Prince Constantine of Imereti( 1789- 1844) and Princess Ana Maria Tereza Denis Lopes de Silva.", "Grandson of King David II of Imereti.", "He married Princess Anna Kotlyarevskaya and had 4 children:"]], ["Prince Khosro of Imereti", ["Khosro( died c. 1570) was a Georgian prince of the Bagrationi dynasty of the Kingdom of Imereti, who led an abortive revolt against King George II of Imereti in 1568."]], ["Constantine Bagrationi", ["Constantine Bagrationi( 1898\u20131978) was a Georgian royal prince(\" batonishvili\") of the royal Bagrationi dynasty of Imereti.", "He became the head of the House of Bagrationi after the death of Prince George in 1972 and was followed by Prince Irakli Bagrationi, son of Prince Grigol, the male- line descendant of Prince Bagrat, young brother of King Solomon I of Imereti( 1752 \u2013 1784)."]], ["Alexander II of Imereti", ["Alexander II", "(died April 1, 1510) was a king of Georgia in 1478 and of Imereti from 1483 to 1510."]]]
supporting_facts: [["Prince Vakhtang of Imereti", 0], ["Alexander II of Imereti", 1]]
evidences: [["Prince Vakhtang of Imereti", "father", "Alexander II of Imereti"], ["Alexander II of Imereti", "date of death", "April 1, 1510"]]
answer: April 1, 1510