Constantine IX Monomachos
The epithet was revived in the mid-11th century—in the feminine form "sebaste"—by Emperor Constantine IX Monomachos (reigned 1042–1055) for his mistress Maria Skleraina, to whom he accorded quasi-imperial honours. A number of individuals were qualified as "sebastoi" thereafter, such as Constantine Keroularios, or Isaac Komnenos and his brother, the future emperor Alexios I Komnenos (r. 1081–1118).