Keraites in the context of "Kherlen River"

Hulegu Khan, also known as Hülegü or Hulagu (c. 1217 – 8 February 1265), was a Mongol ruler who conquered much of Western Asia. As a son of Tolui and the Keraite princess Sorghaghtani Beki, he was a grandson of Genghis Khan and brother of Ariq Böke, Möngke Khan, and Kublai Khan.

Hulegu's army greatly expanded the southwestern portion of the Mongol Empire, founding the Ilkhanate in Persia. Under Hulegu's leadership, the Mongols sacked and destroyed Baghdad, ending the Islamic Golden Age and the Abbasid dynasty. They also weakened Damascus, causing a shift of Islamic influence to the Mamluk Sultanate in Cairo.

Toghrul (Mongolian: Тоорил хан Tooril han; Chinese: 脫里), also known as Wang Khan or Ong Khan (Ван хан Wan han; Chinese: 王汗; pinyin: Wáng Hán; died 1203), was a khan of the Keraites. He was the blood brother (anda) of the Mongol chief Yesugei and served as an important early patron and ally to Yesugei's son Temüjin, later known as Genghis Khan. The main source on his life is the Secret History of the Mongols.

The Torghut (Mongolian: Торгууд, ᠲᠤᠷᠭᠣᠣᠠ, Torguud, "Guardsman", simplified Chinese: 土尔扈特; traditional Chinese: 土爾扈特) are one of the four major subgroups of the Four Oirats. The Torghut nobles traced their descent to the Mongol Keraite ruler Toghrul, and many Torghuts descended from the Keraites. They are scattered in the provinces of Xinjiang (China), Kalmykia (Russia) and Khovd (Mongolia).