Isaac Komnenos (nephew of Andronikos I)

Not much is known about Komnenos, but we know about him is he was the nephew of Andronikos I Komnenos. According to the historian Niketas Choniates, he escaped prison in 1191 taking advantage of Isaac II's absence while was campaigning against the Bulgarians. Komnenos took refuge in the Hagia Sophia, and managed to address a small crowd of people in Constantinople; and was later proclaimed emperor by some people. However, he was not able to get the support from the Byzantine senate, nor the rest of the people of Constantinople. Troops crushed the plot and arrested Isaac, and he was be tortured until he died the next day.^[1][2][3]

• List of Byzantine usurpers