|Prosopography of the Byzantine Empire|
|Dates||711 (taq) / 711 (tpq)|
|Locations||Hagia Theotokos (Church of the, Blachernai);|
|Textual Sources||Nicephorus, Breviarium Historiae, ed. C. Mango, Nikephoros, Patriarch of Constantinople: Short History; prev. ed. C. de Boor Nicephori ArchiepiscopiConstantinopolitani Opuscula Historica Leipzig 1880 (history);|
Theophanes Confessor, Chronographia, ed. C. de Boor, 2 vols. (Leipzig, 1883-85, repr. Hildesheim/NewYork, 1980); tr. and comm. C. Mango and R. Scott, The Chronicle of Theophanes Confessor, Oxford 1997 (chronicle)
Ioannes 9, known as Strouthos, was a spatharios: Theoph. AM 6203 (Ἰωάννῃ σπαθαρίῳ, τὸ ἐπίκλην Στρούθῳ); Nic. Brev. de Boor 47, Mango 45:92-93 (Ἰωάννην τὸν βασιλικὸν δορυφόρον, ἐπίκλην Στροῦθον). In 711 he and Mauros 1 were sent to seize Tiberios 4, the son of the recently overthrown emperor Justinian II (Ioustinianos 1); they found Tiberios 4 in the Church of the Theotokos at Blachernai where Ioannes 9 dragged him away from the altar and they then butchered him; later they also seized and killed Barasbakourios 1 and other high officials of Ioustinianos 1; Nic. Brev. de Boor 47, Mango 45, Theoph. AM 6203.
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