Ögedei Khan in the context of "Kadan"

The Mongol conquest of the Song dynasty (or Song–Yuan War) was the final phase of the Mongol conquest of China, beginning under Ögedei Khan (r. 1229–1241) and being completed under Kublai Khan (r. 1260–1294) . It is considered the last great military achievement of the Mongol Empire; upon its completion, the Mongols ruled all of continental East Asia under the Han-style Yuan dynasty that had been founded as a division of the Mongol Empire.

Baiju Noyan or Baichu (Mongolian: ᠪᠠᠶᠢᠵᠤ ᠨᠣᠶᠠᠨ; Chagatai: بایجو نویان; Chinese: 拜住; pinyin: Bàizhù; in European sources: Bayothnoy; fl. died c. 1258) was a Mongol commander in Persia, Armenia, Anatolia and Georgia. He was appointed by Ögedei Khan to succeed Chormagan. He was the last direct imperial governor of the Mongol Near East; after his death Hulagu's descendants inherited domains he once commanded.

Chormaqan (also Chormagan or Chormaqan Noyan) (Mongolian: ᠴᠣᠷᠮᠠᠭᠠᠨ ᠬᠣᠷᠴᠢ; Chagatai: جورماقان; Khalkha Mongolian: Чормаган; died c. 1241) was one of the most famous generals of the Mongol Empire under Genghis Khan and Ögedei Khan. He was also a member of the keshik.

Tolui (c. 1191 – 1232) was the youngest son of Genghis Khan and Börte. A prominent general during the early Mongol conquests, Tolui was a leading candidate to succeed his father after his death in 1227 and ultimately served as regent of the Mongol Empire until the accession of his brother Ögedei two years later. Tolui's wife was Sorghaghtani Beki; their sons included Möngke and Kublai, the fourth and fifth khans of the empire, and Hulagu, the founder of the Ilkhanate.

Tolui was less active than his elder brothers Jochi, Chagatai, and Ögedei during their father's rise to power, but once he reached adulthood he was considered the finest warrior of the four. He commanded armies under his father during the first invasion of Jin China (1211–1215), and his distinguished service during the Mongol invasion of the Khwarazmian Empire secured his reputation. After the fall of the cities of Transoxiana in 1220, Genghis dispatched Tolui early the following year to subjugate the region of Khorasan, which had begun to cause trouble for the Mongol armies. Tolui executed his orders with ruthless efficiency, assaulting the major cities of Merv, Nishapur, and Herat, and subjugating numerous others. Medieval chroniclers attributed more than three million deaths to the massacres he ordered at Nishapur and Merv; while these figures are considered exaggerated by modern historians, they are evidence of the abnormal brutality of Tolui's campaign.

Subutai (c. 1175–1248) was a Mongol general and the primary military strategist of Genghis Khan and Ögedei Khan. He ultimately directed more than 20 campaigns, during which he conquered more territory than any other commander in history as part of the expansion of the Mongol Empire, the largest contiguous empire in human history. He often gained victory by means of sophisticated strategies and routinely coordinated movements of armies that operated hundreds of kilometers apart from each other. Subutai is regarded as one of the greatest military commanders in history, and the single greatest in Mongolian history. He was instrumental in the conquests of Genghis Khan and Ögedei Khan.

The Battle of Khalakhaljid Sands was fought between Genghis Khan, then known as Temüjin, and the forces of Toghrul, khan of the Kereit. The Kereit elites, deeply suspicious of Temüjin's diplomatic overtures to Toghrul, had convinced their leader to turn on his vassal. Warned by two herdsmen, Temüjin had escaped a planned ambush but was pursued by a larger force. His Mongol allies came to his aid at the Khalakhaljid Sands, but they were defeated. Following the battle, in which Temüjin's 17-year-old son Ögedei was severely wounded, Temüjin swore the Baljuna Covenant with his companions.

The Secret History of the Mongols is the oldest surviving literary work in the Mongolic languages. Written for the Mongol royal family some time after the death of Genghis Khan in 1227, it recounts his life and conquests, and partially the reign of his successor Ögedei Khan.

The author is unknown and wrote in the Middle Mongol language using Mongolian script. The date of the text is uncertain, but the colophon to the text describes the book as having been finished in the Year of the Mouse, on the banks of the Kherlen River at Khodoe Aral, corresponding to an earliest possible figure of 1228.

The House of Ögedei, sometimes called the Ögedeids, was an influential Mongol family and a cadet branch of the Borjigin clan from the 12th to 14th centuries: having been descended from Ögedei Khan (1186-1241) who was the third son and successor of Genghis Khan (1162-1227) that continued the expansion of the Mongol Empire far beyond the East Asian homeland of the Mongols.

When, after the Toluid Möngke Khan's death, the Mongol Empire disintegrated into civil war, the members of the House of Ögedei were influential players in the politics of the region. Among the lines of Genghis Khan's sons — Ögedei, Jochi, Chagatai, and Tolui, the House of Ögedei tended to ally with the Chagataids (descendants of Chagatai) against the House of Jochi, while seeking control for themselves within the Chagatai Khanate at first. The Ögedeids also allied with the Golden Horde against the Yuan founding emperor Kublai (son of Tolui), who was allied with his brother Hulagu, leader of the Ilkhanate in Persia. The Ögedeids attempted to unite the Mongol Empire under their own rule, and Ögedeid princes continued to march against the Yuan dynasty well into the 14th century, such as during the Kaidu–Kublai war.