2. JOANNES CANTACUZENUS, the son or grandson of No. 1, married Maria Comnena, the daughter of Andronicus Comnenus Sebastocrator and the niece of the emperor Manuel Comnenus, and was killed in a war with the Turks-Seljuks about 1174.
A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890