Caraunus
From BiblePortal Wikipedia
Caraunus [1]
(a corruption of Ceraunus), a boy-martyr at Rome, to hon. Fulbert of Chartres writes a hymn, punning on the name and the word "carus." Usuard, who calls him Charaunus, and commemorates him May 28, says that he was beheaded at Chartres. His legend in the Breviarium Carnotense makes him a deacon and evangelist of that place, murdered on his way to evangelize Paris, A.D. 98. This is, probably, mere romance. See Migne, Patrol. cxli, 349; Acta Sanctorum, May, vi, 740.