XZL147684 The Conversion of Olga (d.969) from the Madrid Skylitzes (vellum) by Byzantine School, (12th century); Biblioteca Nacional, Madrid, Spain; (add.info.: wife of Igor, became regent at his death; visited the Byzantine Emperor, Constantine VII at Byzantium in 957 for baptism; The Madrid Skylitzes, also known as the Codex Skylitzes Matritensis, is an illustrated illuminated manuscript of the Synopsis of Histories, by John Skylitzes (c.1040-after 1101) which covers the Byzantine Empire throughout the years 811-1057. The manuscript was produced in Sicily in the 12th century and is the only surviving illustrated manuscript of a Greek chronicle. ); out of copyright.