 In 927, the German Emperor Otto II married the niece of the Byzantine Emperor John I Tzimisces, princess Theophanu, and she supposedly introduced imperial goldsmiths and enamelers to the German church.Many famous examples of Byzantine enamel are "staurothekes", relics containing fragments of the True Cross, which were greatly prized in both the east and the west, therefore more survive still in modern collections.It is likely that a "staurotheke" was one of the first gifts sent from the East to the West.