His grandson Shah Rukh briefly reunited his empire after it was divvied up among his descendants.  
This man's calligrapher Omar Aqta was so skilled that he supposedly transcribed the entire Qu'ran on a signet ring.  He promoted unity among his soldiers by founding the tradition of Kurash wrestling.  His grandson Shah Rukh briefly reunited his empire after it was divvied up among his descendants.  He kidnapped the artisans of Damascus and was victorious over Tughluq at Panipat in 1398, after which he sacked Delhi.  He waged war with the Knights of Rhodes at Smyrna, and his underling Tokhtamysh fought against Russia for him before turning against him, leading this man to order rebels' skulls stacked into pyramids.  For 10 points, name this Samarkand-based cripple. 
This man's calligrapher Omar Aqta was so skilled that he supposedly transcribed the entire Qu'ran on a signet ring.  
Tamerlane [or Timur the Lame; or Emir Timur or Tamberlaine or Timur-i Leng]