 The emperor strongly relied on high-ranking clergy like the archbishops Philip of Cologne and Conrad of Mainz.Several contemporary accounts of his life given by ecclesiastical chroniclers like Godfrey of Viterbo or Peter of Eboli in his "Liber ad honorem Augusti" (on the emperor's conquest of Sicily) paint a bright picture of Henry's rule; while the annals by Otto of Sankt Blasien are considered more objective.In his "Arnoldi Chronica Slavorum" the chronicler Arnold of Lübeck concentrates on the dispute between the Hohenstaufen and Welf dynasties from a pronounced Welf perspective, while Gislebert of Mons tells of Henry's policies in Hainaut and Flanders.