St. Luke the Evangelist
Most reliable info I could find is that:
Luke was 84 years old when the wicked idolaters tortured him for the sake of Christ and hanged him from an olive tree in the town of Thebes, in Beothia of Greece
Source: Nikiphoros-Kallistos Xanthopoulos, Eccles. History XIVth c. AD., Migne P.G. 145, 876
Source: https://catalog.obitel-minsk.com/blog/2016/11/the-life-travels-and-martyrdom-of
This website does not cite any source for this account.
Returning to Greece he again set up churches there, primarily in Boethia, ordained priests and deacons, and healed those sick of body and soul. Like his friend and mentor, the Apostle Paul, St. Luke fought the good fight, finished his course and kept the Faith. At the age of eighty-four, he died a martyr’s death in Achaia, crucified on an olive tree in lieu of a cross. His precious body was buried in Thebes, the principal city of Boetia, where his holy relics, which were responsible for a multitude of hearings, were to be found until the second half of the fourth century; they were subsequently transferred to Constantinople, the capital of the Eastern Empire.
Russian orthodox church:
He was eighty-four years old when wicked idol-worshippers put him to torture for the sake of Christ and hanged him from an olive tree in the town of Thebes in Beothia.
I've also found different accounts from the Ethiopian Orthodox Church...
Source Ethiopian Synaxarium p. 103-104
Saint Luke the evangelist, the physician, became a martyr on November 1 (Tikimet 22).... After the death of Peter and Paul, Luke preached in the country of Rome.....When he had come to Nero, Emperor of Rome, he stood up before him. The emperor said to him, “How much longer will you lead men into error by thy sorcery?” Saint Luke answered and said to him, “I am not a magician, but an Apostle of our Lord Christ, the Son of the Living God.” .... The emperor commanded his soldiers to cut off their heads, the head of Saint Luke the apostle, and the soldiers cut them off. The saints received crowns of martyrdom in the kingdom of the heavens. They placed the body of Saint Luke the apostle in a hair sack and cast it into the sea
It seems there is a seperate account that St Luke was beheaded by Nero. Though more information points to the actual events being the death in or near Beothia in Greece involving an olive tree.