Dmitry of Uglich was the youngest son of the Russian tsar Ivan the Terrible. Born in Moscow in 1582, he lived as a tsarevich during the reign of Feodor I before being sent to Uglich in 1584. His life ended prematurely in 1591 under mysterious circumstances, with theories suggesting either an accidental self-inflicted injury or a murder orchestrated by Boris Godunov. He is recognized as a saint within the Orthodox and Catholic traditions, specifically honored as a passion bearer.