 Thereupon a new imperial election was held in Halberstadt and (with Bernhard's vote included) Otto of Brunswick was elected on 22 September and crowned immediately in Frankfurt as Otto IV.Otto IV, who meanwhile had fallen out with Pope Innocent III over Sicily, supported the reascension of Valdemar, the papally dismissed Prince-Archbishop of Bremen.So in 1211 Bernhard escorted his brother-in-law Valdemar into the city of Bremen, de facto regaining the see.