Why Tokhtamysh Lost Everything by Turning on His Patron

The Challenge

In the 1370s Tokhtamysh was a Chinggisid prince driven into exile by Urus Khan of the Blue Horde. He found refuge with Timur (Tamerlane), the rising ruler of Transoxiana, who backed him with troops in his attempts to win the throne.

The Approach

• With Timur's support, took the Blue Horde and then Sarai, reuniting the Golden Horde and ending the Great Troubles around 1380
• Defeated the warlord Mamai and reasserted the Horde's authority over the Rus, sacking Moscow in 1382
• Then turned on his patron, raiding Timur's lands in Azerbaijan and Transoxiana in the late 1380s

The Impact

Timur struck back. He defeated Tokhtamysh at the Kondurcha River in 1391 and decisively on the Terek River in 1395, then sacked Sarai and the Horde's trading cities.

The Golden Horde never recovered its economic base. Tokhtamysh lost his throne and spent his last years as a fugitive, and the Horde began its final fragmentation into separate khanates.

The Lesson for Leaders

Tokhtamysh had every advantage: a reunited realm, a restored army and a patron who wanted him to succeed. He spent them on a war with the one partner able to destroy him. An ally who made your rise possible is rarely a safe first target, and turning on one tells every other partner what your commitments are worth.