 Following his escape from Constantinople, Harald arrived back in Kievan Rus' later in 1042.During his second stay there, he married Elisabeth (referred to in Scandinavian sources as Ellisif), daughter of Yaroslav the Wise and granddaughter of the Swedish king Olof Skötkonung.Shortly after Harald's arrival in Kiev, Yaroslav attacked Constantinople, and it is considered likely that Harald provided him with valuable information about the state of the empire.