What information we have in regard to the chapel is little, but clear and definite, resting as it does on the authority of the two epitaphs which the poet Philes composed to be inscribed on the interior and exterior walls of the building. One of the epitaphs, if ever placed in position, has been destroyed or lies concealed under Turkish plaster. Of the other only fragments remain, forming part of the scheme of decoration which adorns the south wall of the chapel. But fortunately the complete text of both epitaphs is preserved in the extant writings of their author, and affords all the information they were meant to record. The chapel was dedicated to Christ as the Logos[249] and was built after the death of the protostrator by his wife Maria, or Martha in religion, for a mausoleum in which to place his tomb.[250] As the protostrator died about 1315, the chapel was erected soon after that date. An interesting incident occurred in this chapel soon after the Turkish conquest. One day when the Sultan was riding through his newly acquired capital he came to the Pammakaristos, and upon being informed that it was the church assigned to the Patriarch Gennadius, alighted to honour the prelate with a visit. The meeting took place in this parecclesion, and the conversation, of which a summary account was afterwards sent to the Sultan, dwelt on the dogmas of the Christian Faith.[251] [Illustration: FIG. 49.] The text of the epitaph, portions of which appear on the exterior face of the south wall of the parecclesion of the church of the Pammakaristos (_Carmina Philae_, ccxxiii. ed. Miller, vol. i. pp. 117-18) reads as follows:-- [Greek: Aner, to phôs, to pneuma, to prosphthegma mou, kai touto soi to dôron ek tês syzygou; sy men gar hôs agrypnos en machais leôn hypnois, hypelthôn anti lochmês ton taphon; egô de soi teteucha petraian stegên, 5 mê palin heurôn ho stratos se syncheê, kan deuro ton choun ektinaxas ekrybês, ê tou pachous rheusantos hêrpagês anô, pan hoplon apheis ekkremes tô pattalô; tas gar epi gês ebdelyxô pastadas 10 en eutelei tribôni phygôn bion kai pros noêtous antetaxô satrapas, sterrhan metendys ek theou panteuchian. hôs ostreon goun organô soi ton taphon, ê kochlon ê kalyka kentrôdous batou; 15 margare mou, porphyra, gês allês rhodon, ei kai trygêthen ekpiezê tois lithois hôs kai stalagmous proxenein moi dakryôn, autos de kai zôn kai Theon zônta blepôn hôs nous katharos tôn pathôn tôn ex hylês 20 ton son palin thalamon eutrepize moi; hê syzygos prin tauta soi Martha graphei, prôtostrator kalliste kai tethammenôn].[252]