解説Seal of Isaac Komnenos, brother of Alexios I.jpg
English: Isaac Comnenus. Protoproedros and megas domestikos of the scholai of Anatolia, before 1081. PB Seal (32mm, 20.92 g, 12h). O/A/GI/OC down left field; Q/E/OD/wR/O]C down right field; facing bust of St. Theodore, wearing military attire, holding spear in right hand and shield in left / + K[ΥΡΙ]E Β[ΟΗ]ΘΕΙ/ TΩ CΩ ΔOΥΛΩ/ ICAAKIΩ A΄ ΠΡΟ/EΔΡΩ S MEΓ[ΑΛΩ] ΔO/MECTIKΩ TΩN/ CXOΛΩN THC/ ANΑTOL[ΗC] TΩ/ KOMNHN[Ω]. BLS I -; DOCBS -; Seyrig -; Vatican -; Orghidan -; Jordanov -. VF, attractive brown patina.
This seal probably belongs to Isaac Comnenos, the brother of Alexius I and general of the East. He played a crucial role in the rebellion against Nicephorus III and Alexius’ accession in 1081. The seal likely dates to before Alexius’ rise to power, when Isaac received the newly created title sebastokrator.