The cross contains a collection of very significant relics, including the Wood of the Holy Cross, the Robes of Christ and the Virgin, relics of John the Baptist, St. Nicholas, St. John Climacus and many Russian saints: Boris and Gleb, Prince Dimitry, the holy metropolitans of Moscow (Peter, Alexei, Iona and Philip). Most probably, it has been made as the Baptism cross of Ivan Alekseevich, son of Tsar Aleksei Mikhailovich, who was born in 1666. Moscow, 1660th