Dmitri (Dmitry) of Uglich, known also as Tsarevich Dmitri or Dmitri Ivanovich, was the youngest son of the first Tsar of All the Russias, Ivan IV Vasilyevich, more commonly known as Ivan Grozny or Ivan the Terrible. There is not much that can be said about the life of Dmitri of Uglich, as he died at the extremely young age of eight.