"Tsarevich Dmitry or Dmitri Ivanovich (Russian: Дмитрий Иванович, tr. Dmitrii Ivanovich; 19 October 1582 – 15 May 1591), also known as Dmitry of Uglich (Дмитрий Угличский, ...
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Uglichskii) or Dmitry of Moscow (Дмитрий Московский, Moskovskii), was a Russian tsarevich famously impersonated by a series of pretenders after the death of his father Ivan the Terrible." - (en.wikipedia.org 23.02.2021)