It is celebrated 05.06.2026 according to the Julian calendar, or 18.06.2026 according to the Gregorian calendar. See what else we celebrate on that day here.
New Martyr Mark of Smyrna, who suffered in Chios (1801)
The Holy Martyr Mark was a native of the city of Smyrna. For his confession of Christianity, the Turks beheaded him with a sword on the island of Chios in the year 1801.