High Quality Content by WIKIPEDIA articles! Yaropolk Izyaslavich (died 1087) was a Knyaz (prince) during the eleventh-century in the Kievan Rus` kingdom and was the King of Rus (1076–1078). The son of Grand Prince Izyaslav Yaroslavich by a Polish princess named Gertruda, he is visible in papal sources by the early 1070s but largely absent in contemporary Rus sources until his father`s death in 1078. During his father`s exile in the 1070s, Yaropolk can be found acting on his father`s behalf in an attempt to gain the favor of the German emperors and the papal court of Pope Gregory VII. His father returned to Kiev in 1077 and Yaropolk followed.