The Holy Prince Dimitri of Uglich (Moscow) was born on October 19, 1582. He was the son of Tsar John the Terrible. During the reign of Feodor Ivanovich, when his brother–in-law, the power-hungry boyar Boris Godunov, was actually the ruler of the Russian state, Tsarevich Dimitri, along with his mother, Tsarina Maria Feodorovna, was removed from the court in the city of Uglich. Wanting to get rid of the legitimate heir to the Russian throne, Boris Godunov began to act against the tsarevich as a personal enemy. At first, he tried to slander the young heir to the throne by spreading false rumors about his alleged illegitimacy. Then he spread a new fiction that Demetrius had inherited the severity of his sovereign father. Since these actions did not bring the desired result, the treacherous Boris decided to ruin the prince. The attempt to poison Dimitri was unsuccessful: the deadly potion did not harm the boy. Then the villains decided on an obvious crime.
On Saturday, May 15, 1591, when the boy was walking with his wet nurse in the courtyard, the assassins, Osip Volkhov, Danilo Bityagovsky and Nikita Kachalov, brutally stabbed the prince.
Tsarevich Dimitri was buried in Uglich, in the palace church in honor of the Transfiguration of the Lord. Many miracles and healings began to be performed at his tomb, especially those with sick eyes. And on July 3, 1606, the holy relics of the passion-bearer Tsarevich Dimitri were found incorruptible.
The transfer of the holy relics of the blessed Tsarevich Dimitri, who was killed on May 15, 1591, from Uglich to Moscow took place in 1606. The motive for this was the desire, in the words of Tsar Vasily Shuisky, "to block the mouth of a liar and blind the eyes of an unbeliever by speaking, like a living izbezh (prince) from murderous hands," in view of the appearance of an impostor who declared himself the true Tsarevich Dimitri. The holy relics were solemnly transferred and laid in the Archangel Cathedral of the Moscow Kremlin, "in the chapel of John the Baptist, where the father and his brothers are." After numerous miraculous healings from the holy relics, in the same year 1606, "they composed a feast for Tsarevich Dimitri three times a year – the birth (October 19), the murder (May 15), and the transfer of the relics to Moscow (June 3)."