Keywords: MadridSkylitzesFol173r.jpg Skyllitzes Matritensis fol 173r Upper miniature the Pechenegs slaughter the Rus of Sviatoslav of Kiev Lower miniature Emperor John I Tzimiskes with the Patriarch Antonios Stoudites http //bdh bne es/bnesearch/detalle/1754254 Biblioteca Digital Hispánica from the Middle Ages unknown 11th-13th centuries <gallery> File MadridSkylitzesFol173ra jpg </gallery> PD-old-100 Sviatoslav I of Kiev in medieval miniatures Sviatoslav's invasion of Bulgaria Pechenegs Madrid Skylitzes Ioannes I Tzimiskes Patriarchs of Constantinople |