The Pechenegs were a Turkic steppe confederation who dominated the north Pontic grasslands for two centuries, drove the Magyars into Pannonia, killed a prince of Kiev, and were destroyed by the Byzantine Empire in 1091 and 1122.
The Pechenegs were a confederation of Turkic-speaking tribes who moved west onto the grasslands north of the Black Sea in the late ninth century and held them for roughly two hundred years.
They had no cities, no written language and no single ruler — eight tribes under their own chieftains, in a confederation that acted together when it suited and separately when it did not.
For the Byzantine Empire they were the central fact of the northern frontier: too dangerous to fight, too useful to destroy, and positioned so that they could be set against the Rus', the Magyars, the Bulgars or each other. That policy worked for a century and a half and then failed completely.
They appear in the sources moving west under pressure from the Oghuz and the Khazars, and by the 890s they held the steppe from the Danube to the Don.
Their first great act was to destroy the Magyar homeland of Etelköz while its warriors were away campaigning. The Magyars moved west into the Carpathian basin, where they became Hungary — so the kingdom the empire fought at Sirmium in 1167 exists in the shape it does because of a Pecheneg raid in the 890s.
They lived by herding, by raiding, and by charging tolls on the river trade between the Rus' and Constantinople — which made them essential to that trade and a permanent threat to it.
The Pechenegs left no records, so the named individuals are those the Byzantine and Rus' sources happened to mention, and the list is short and unreliable.
Kourya is named as the chieftain who killed Sviatoslav of Kiev at the Dnieper cataracts in 972 and had his skull mounted as a drinking cup — the second ruler in this archive to suffer that particular fate.
In the eleventh century the sources name Tyrach and Kegen, rivals whose quarrel brought the Pechenegs across the Danube: Kegen defected to the empire with his followers and was baptised, and Tyrach led the invasion that followed. Their conflict is the clearest surviving glimpse of Pecheneg politics, and it comes entirely from the people they were invading.
The clearest statement of Byzantine steppe policy is the opening of the De Administrando Imperio, the private handbook Constantine VII wrote for his son around 950, and it is about the Pechenegs.
The argument is systematic: keep peace with the Pechenegs, because while they are friendly the Rus' cannot attack, the Magyars cannot attack, and the Bulgars can be threatened. Every other people on the northern frontier is managed through them.
It is the frankest surviving document of how the empire actually thought about its neighbours — not as enemies to be conquered but as forces to be balanced — and the Pechenegs are its worked example.
The system broke in the eleventh century, when the Cumans pushed the Pechenegs west and the empire could no longer keep them on the far side of the Danube.
From 1046 large groups crossed into imperial territory, sometimes as invited settlers and sometimes as invaders, and Byzantine armies were beaten repeatedly — most heavily in the campaigns of 1049 to 1053, which cost the empire an army and a reputation.
By 1090 a Pecheneg host was wintering in Thrace, in alliance with the Turkish emir of Smyrna, and the capital itself was threatened.
On 29 April 1091 Alexios I met them at Mount Levounion with forty thousand Cuman horsemen he had hired, and destroyed the host with its families in a single day.
A remnant remained north of the Danube and crossed again a generation later; John II caught it at Beroia in 1122 and destroyed it in turn, breaking the wagon laager with the axes of the Varangian Guard.
After 1122 the Pechenegs do not appear as an independent people. Survivors were settled inside the empire and in Hungary, served as troops, and were absorbed.