Who was the brother of XXX?
Adrianos Komnenos
Adrianos Komnenos (Greek: Ἁδριανὸς Κομνηνός), sometimes Anglicized as Adrian or Latinized as Adrianus Comnenus, was a Byzantine aristocrat and general, and a younger brother of the Byzantine emperor Alexios I Komnenos (r. 1081--1118).
Alexios I Komnenos