Pecheneg Siege of Constantinople

Timeline

1. 1046Thrace and Paristrion · ThracePecheneg khagan Tyrach led his tribal confederation across the Danube into the empire, extensively raiding Thrace, Macedonia and Paristrion (the Danube-lower military theme); local garrisons could not withstand them, and Constantinople's overland supply lines and northern defenses were directly threatened.
2. 1047Battlefield in Thrace · ThraceThe emperor appointed the Pecheneg-turned-general Kegen to lead the counterattack, joining forces with Arianites and the former monk Basil's troops; harassment first weakened enemy morale, and after a plague broke out in the Pecheneg camp, the Byzantine army launched a general assault, routing the cavalry and pursuing them to their camp, forcing the confederation to surrender.
3. 1047Constantinople · ConstantinopleThe Pechenegs settled as federated subject peoples on the emperor's terms, but the Macedonian theme's troops were disbanded after the war, unsettling the army. That September, the emperor's cousin Leo Tornikios raised troops at Adrianople and besieged Constantinople for four days, further exposing the capital's defensive fragility; from 1048 Pecheneg remnants again launched raids in the Balkans.