Feodor III of Russia

Feodor Alekseyevich became Tsar of all Russia on 1676, inheriting the throne at fifteen with a body that had been failing since childhood. The frailty never stopped the reforms: he pushed through changes that made merit, not bloodline, the ticket into civil and military posts—a direct challenge to the old boyar system. In the same reign he founded the Slavic Greek Latin Academy, Muscovy's first venture into higher education. He died on 7 May 1682, twenty years old, having spent his brief rule remaking the state from a chair he could barely leave.