(*)  on the day Operation Barbarossa began.
One ruler of this dynasty made astronomical observations moreprecise than those of any contemporary European, but could not prevent his son from rebelling and having him beheaded. The founder of this dynasty was exhumed         by Mikhail Gerasimov(*)  on the day Operation Barbarossa began. That founder forced Sultan Bayezid the Thunderbolt to break off a siege of Constantinople and fought a civil war with Tokhtamish. He died while planning an invasion of China. A Christopher Marlowe play chronicles the life of this dynasty's founder. For ten points, name this dynasty founded by a lame warlord, the ancestors of the Mughals.
One ruler of this dynasty made astronomical observations moreprecise than those of any contemporary European, but could not prevent his son from rebelling and having him beheaded.
Timurids