For All the Saints - Biography of SS. Theodore and Theophanes. - http://www.saintpatrickdc.org/ss/1227.htm#theo
Catholic Encyclopedia - SS. Theodorus and Theophanes, blood brothers, monks, defenders of the holy icons during the second Iconoclastic controversy. They are called "Grapti" or "Graptoi" ("written upon") because a dozen lines of verse were carved in - http://www.newadvent.org/cathen/14577a.htm