At Constantine's request, his father assigned him to rule the city of Murom, which at the time was inhabited by pagans, that he might spread Christianity in that region.

According to a legend recorded by local aristocrat and amateur historian Alexander Yepanchin, each midnight the monastery's gates disappear, and Constantine, Mikhail and Fyodor, clad in regal attire, ride out in a gilded carriage and head to the Cathedral of the Nativity of Mary, where they are met by Pyotr and Fevronia.

At her feet are Murom saints: Constantine, Mikhail and Fyodor arrayed in princely robes and Peter, Fevronia and Uliania clad in monastic habits.

In the bottom part of the icon is the following inscription: 'This Marvelous Image Is the Star Most Bright of the Most Holy Lady Mother of God Queen of Heaven.

"[5] On 1547 Metropolitan Macarius of Moscow canonized Constantine as a saint in the Monastery of Makaryev, He is commemorated in the Russian Orthodox Church on May 21.