The holy, glorious, all-laudable Apostle Olympas is numbered among the Seventy Apostles. He and the Apostle Herodian were followers of the Apostle Peter. By command of Emporer Nero, they were beheaded with St. Peter. The Church remembers St. Olympas on November 10.
Source
St. Nikolai Velimirovic, The Prologue of Ohrid