Bayan was one of most famous khans of White Horde. "Bayan" means "rich

Rich

Rich may refer to wealth. Rich may also refer to:- Organizations :* B.C. Rich, guitar manufacturer* Rich Products, international food products corporation* Rich's, U.S. department store retail chain in the southern U.S....

" and "buyan" means "good deed/act" (as in religion or belief) in the Mongolian language

Mongolian language

The Mongolian language is the official language of Mongolia and the best-known member of the Mongolic language family. The number of speakers across all its dialects may be 5.2 million, including the vast majority of the residents of Mongolia and many of the Mongolian residents of the Inner...

.

When Bayan became the khan, his cousin and relatives revolted against him. The latters, under his cousin Kobluk, were supported by Khaidu

Kaidu

Kaidu was the leader of the House of Ogedei and the de facto khan of the Chagatai Khanate. He ruled part of modern-day Xinjiang and Central Asia during the 13th century, and actively opposed his uncle, Kublai Khan, who established the Yuan Dynasty in China until his death in 1301...

 and Duwa

Duwa

Duwa , also known as Du'a, was khan of the Chagatai Khanate . He was the second son of Baraq. He was the longest reigning monarch of the Chagatayid Khanate and accepted the Great Khan's supremacy...

. Bayan fought his rebel cousin, Koblek, and Kaidu's forces several times. He asked help from Tokhta, ruler of the Golden Horde

Golden Horde

The Golden Horde was a Mongol and later Turkicized khanate that formed the north-western sector of the Mongol Empire...

 and the Blue Horde. Tokhta was angry with the situation, and warned Khaidu not to help the rebels.
Buyan also tried to ally with Temur Oljeitu

Emperor Chengzong of Yuan China

Temür Öljeytü Khan , born Temür , or Emperor Chengzong of Yuan　 , also spelled Timur, was the second leader of the Yuan Dynasty between May 10, 1294 and February 10, 1307, and is considered as the sixth Great Khan of the Mongols in Mongolia...

 of the Yuan Dynasty

Yuan Dynasty

The Yuan Dynasty , or Great Yuan Empire was a ruling dynasty founded by the Mongol leader Kublai Khan, who ruled most of present-day China, all of modern Mongolia and its surrounding areas, lasting officially from 1271 to 1368. It is considered both as a division of the Mongol Empire and as an...

, the suzerain of Mongol Empire

Mongol Empire

The Mongol Empire , initially named as Greater Mongol State was a great empire during the 13th and 14th centuries...

, against the Chagatai Khanate

Chagatai Khanate

The Chagatai Khanate was a Turko-Mongol khanate that comprised the lands ruled by Chagatai Khan , second son of the Great Khan Genghis Khan, and his descendents and successors...

 and Khaidu. But the distance between them made it ineffective. Finally, Bayan defeated his enemies and ruled his Horde till 1309. It is claimed that Circassians, Russians

Russians

The Russian people are an East Slavic ethnic group native to Russia, speaking the Russian language and primarily living in Russia and neighboring countries....

 and Hungarians (probably Bashkirs

Bashkirs

The Bashkirs are a Turkic people indigenous to Bashkortostan extending on both parts of the Ural mountains, on the place where Europe meets Asia. Groups of Bashkirs also live in the republic of Tatarstan, Perm Krai, Chelyabinsk, Orenburg, Tyumen, Sverdlovsk, Kurgan, Samara and Saratov Oblasts of...

) served in his army.