Egbert Psalter

She included her prayer book as part of the codex and commissioned its illuminations, which curiously blend Byzantine and Romanesque traditions.

In the 12th century, the codex was in the possession of the Andechs-Merania family, and was given to Elizabeth of Hungary either by her mother, Gertrude of Merania, or by her aunt, Saint Hedwig of Andechs.

It is known that Yaropolk was the first to build a church to St Peter in Kiev and that he placed an image of that saint on his coins.

In 1075 he was sent by his dethroned father to Rome in order to secure the Pope's support in recompense for bringing Russ (Ruth) under the patronage of St Peter ("patrocinium beati Petri").

There are two letters of Pope Gregory VII to the king of Poland and to Svyatoslav II of Kiev admonishing them to return the Kievan throne to Iziaslav.