No 26
Location: On the window sill under a bricked-up window in a niche on the east wall of the north gallery at a height of 90 cm above the floor level.
Material: Marble surface, 6th century.
Dimensions: One-line inscription directly below the previous one with total length 12.5 cm and height of the letter varying between 0.4 cm (О₂) and 1 cm (Ѱ).
Condition: Lightly incised, some letters barely legible.
Technique: Incised.
Language: Old Slavonic.
Scripture: Cyrillic.
Restored text:
Translation: Gleb, son of Boris (Borisovič) wrote [this]
Attribution: Autograph inscription.
Announced: Y. A. Artamonov, А. А. Gippius, I. V. Zaitsev, Drevnerusskie nadpisi-graffiti Konstantinopolskoy Sofii, v: 1150 let Rossiiskoy gosudarstvenosti i kultury, Moscow 2012, 290; Y. A. Artamonov, А. А. Gipppius, Drevnerusskie nadpisis v Sofii Konstantinopolskoy, v: Slavianskii almanah, Moscow 2012, 46.
Publications: Tomov, Nepoznatiyat hram „Sv. Sofia”, 173-175.
Commentary: Tomov, Nepoznatiyat hram „Sv. Sofia”, 174.
Palaeography: Tomov, Nepoznatiyat hram „Sv. Sofia”, 174.
Orthography: Tomov, Nepoznatiyat hram „Sv. Sofia”, 174.
Date: Second half of the 12th – beginning of the 13th century AD.