Saint martyr Constantine, a Georgian prince from Upper Kartli, became renowned for his generosity towards the poor and his patronage of churches. During his reign, Georgia often faced attacks from enemies. In one of the battles, he was captured and brought to Tbilisi by the emir Buge, who imprisoned him and then sent him to King Jepard. The king tried to persuade him to renounce Christ, but Constantine steadfastly confessed his faith. For his perseverance in faith, he was beheaded in 852 at the age of 85. His body was hung in the square, but Christians took it and transported it to Georgia. The burial place is unknown.
During the time of Catholicos John II (871–893), a feast was established in honor of Saint martyr Constantine, and later a service was composed by Catholicos Anthony.
