Around this time, in north eastern Iran, descendants of Ghenghis’ third son, Choghtei, were ruling. Their kingdom was divided to several smaller principalities. In 1370 AD, Teymur (or Tamerlane) became king of Samarghand. He soon began conquering his neighboring territories and soon enough he was king of all Khaarazm( present day Ozbakestan and Tajikestan). Then around 1380’s he turned toward Iran. He conquered all of the country except Lorestan which was between two great mountains. Then he went to Turkey and defeated Ottoman Sultan, Ildurum Bayzit (Bayzit the Thunder). Teymur ruled his vast territory with power till his death in 1405. He was a cruel and wicked ruler. He killed his opponents without mercy and made tens of “Kalle-Menaars”, towers made out of cut off heads of his enemies. The interesting thing is that he also was a very religious and he new the whole Qoran from his memory.
After Teymur’s death his sons Miranshah and Sharokh became kings, but it was obvious that without Teymur’s cruelty and his terrifying power, his empire would not last very long. Soon after Ulugg Beg's death in 1449, the Timurid empire was divided between tens of other smaller Dynasties.
Other cescendants of Teymour continued to rule their petty kingdoms in Khurasan or Transoxania until 1507.
| Il-Khans | Teymur's Attack |
| Era of Chaos | Safavid Dynasty |