The celebration of the Synaxis of the Rostov and Yaroslav Saints on May 23 was established by resolution of His Holiness Patriarch Alexis I (+ 1970) and the Holy Synod of the Russian Orthodox Church, on March 10, 1964.
The holy Prince John of Uglich was a devout and God-fearing Christian from his youth. He and his brother Demetrius were thrown into prison by their uncle John, and remained there for thirty-two years.
Before his death, Prince John received monastic tonsure with the name Ignatius.
St Ignatius the wonderworker is also commemorated on May 19.