other · 80 · Hierapolis
Polycrates of Ephesus wrote to Victor of Rome around 190, defending the Asian date of Pascha by naming the great lights who had fallen asleep in Asia and would rise at the Lord's coming: 'Philip, one of the twelve apostles, who sleeps in Hierapolis' with two daughters who grew old as virgins. Eusebius keeps the letter twice over (HE 3.31, 5.24). Two cautions belong on it. Polycrates may be conflating this Philip with Philip the Evangelist, one of the Seven, whose four prophesying daughters Acts 21:9 places at Caesarea — the daughters are the tell. And the later Acts of Philip has him crucified head downward at Hierapolis, which is why the West often calls him a martyr; this dataset does not, because is_martyr is derived and nothing in the early record supports it.
The bishops of Asia cite the grave as a credential in the quarrel over Easter.
Eusebius — Ecclesiastical History V.24 (the letter of Polycrates)