Hippolyte Delehaye,
1911 Encyclopædia Britannica, Volume 16…
(1911)
“ The punishment of the gridiron and the speech of the martyr are probably a reminiscence of the Phrygian martyrs, as related by Socrates (iii. 15) and Sozomen (v. 11) . But the fact of the martyrdom is unquestionable. ”
