[4] Some researchers believe that Euphemia was the daughter of Bela's older brother Andrew I of Hungary and his wife Anastasia of Kiev, with the alternative name Adelhaid been proposed, due to minimal sources on her birth.
Instead of returning to Hungary, Euphemia stayed with her sons and took refuge under her husband's elder brother, Conrad I, Duke of Bohemia.
Conrad only ruled for eight months before his death, after which the Dukedom was awarded to the late king's son, Bretislav II according Agnatic seniority.
Nevertheless, the enmity with the Moravian branch of the Přemyslids increased, more so when Duke Bretislav II appointed his half-brother Bořivoj II ruler of the Moravian lands and made an application to Henry IV, Holy Roman Emperor to acknowledge Bořivoj's succession as Bohemian duke, thus starting a civil war with the sons of Conrad, Ulrich and Luitpold of Znojmo.
In 1099, Borivoj prevailed when the Emperor had an Imperial charter written out, and after the death of Bretislav II in 1100, Bořivoj took power.