This thesis examines political troublemaking in the medieval Roman Empire during the Komnenian period (1081–1183 CE), arguing that the nature and tactics of domestic opposition underwent a fundamental transformation across this century, reflecting a broader consolidation of dynastic power by the Komnenian family. Drawing on a prosopographical methodology and engaging critically with primary sources such as the domestic chronicles of Niketas Choniates, Anna Komnene's Alexiad, and Ioannes Kinnamos