Michael Catalactus

Michael Catalactus is a Byzantine emperor mentioned in Grettir's Saga. The saga records that "Michael Catalactus was king over Constantinople" when the avengers arrived in the city during the final chapter of the Grettir narrative (Grettir's Saga, Grettir's Death Avenged by His Brother Thorsteinn Dromund). This brief mention serves to place Thorsteinn's journey of vengeance within a specific historical context, anchoring the saga's concluding episodes to the Byzantine court.