Staurakios, born in the early 790s, was the son of Nikephoros I and an unknown woman. He was elevated to co-emperor on 25 December 803, following his father's ascent to the Byzantine throne after deposing Empress Irene in 802. His marriage to Theophano of Athens, a relative of Irene, was arranged during a bride show held on 20 December 807, marking a significant alliance in the turbulent political landscape of the time.
His brief reign as Byzantine emperor began under tragic circumstances. Following the death of his father, Staurakios took the throne on 26 July 811, despite suffering severe injuries from the disastrous Battle of Pliska, where much of the Byzantine army was decimated and Nikephoros was killed. Staurakios was carried back to Constantinople, where he was declared emperor, but his physical condition raised immediate concerns about his ability to rule.
Staurakios's reign lasted only sixty-eight days, ending on 2 October 811 when he was usurped by his brother-in-law, who became Michael I Rhangabe. The political instability surrounding his injuries and the question of succession led to his swift removal from power. Following his deposition, Staurakios was sent to live in a monastery, where he spent his remaining days.
His life came to a tragic end on 11 January 812, with reports suggesting he died from gangrene or possibly at the hands of his sister, Prokopia. Staurakios remains a poignant figure in Byzantine history, emblematic of the fragility of power and the often brutal realities of imperial succession.