Hartwig was a high-ranking clergyman who served as the Roman Catholic Archbishop of Salzburg from 991 until 1023. Born around 1000 into the Bavarian Aribonid family, he was the son of the count palatine Hartwig. His ecclesiastical career progressed through several stages, including serving as a subdeacon in 970 and being ordained a priest in 985. Throughout his leadership, he remained a significant figure in imperial and religious affairs, participating in major historical events such as the election of Pope Gregory V.