Great Seljuq Empire in the context of "Tughril"

The Saltukids or Saltuqids (Modern Turkish: Saltuklu Beyliği) were a dynasty of the Seljuk Empire, founded after the Battle of Manzikert (1071) centred on Erzurum. The Saltukids ruled between 1071 and 1202. The beylik was founded by Emir Saltuk, one of the Turkmen commanders of the Great Seljuk Alp Arslan. The beylik fought frequently against the Georgian Kingdom for hegemony of the Kars region. The center of the beylik, Erzurum, was briefly re-occupied by the Byzantine Empire between 1077 and 1079, and was besieged by the Georgian King Giorgi III in 1184. It comprised the entirety of present-day Erzurum and Bayburt provinces, lands east of Erzincan, most of Kars, and lands north of Ağrı and Muş provinces during its height.

The territorial evolution of the Ottoman Empire spans seven centuries.

The origins of the Ottomans can be traced back to the late 11th century when a few small Muslim emirates of Turkic origins and nomadic nature—called Beyliks—started to be found in different parts of Anatolia. Their main role was to defend Seljuk border areas with the Byzantine Empire —a role reinforced by the migration of many Turks to Asia Minor. However, in 1071 and following the victory of the Sultanate of Rum over the Byzantines at the Battle of Manzikert, Beyliks sought an opportunity to override the Seljuk authority and declare their own sovereignty openly.

The Battle of Qatwan (Chinese: 卡特萬之戰) was fought in September 1141 between the Qara Khitai (Western Liao dynasty) and the Seljuk Empire and its vassal-state the Kara-Khanid Khanate. The battle ended in a decisive defeat for the Seljuks, signaling the beginning of the end of the Great Seljuk Empire.