In a contribution published in 1983 Althoff focused on a monk called "Widukind" who is identified as "Dominator Widukind" in the of Reichenau Abbey. Althoff, in his essay, identifies "Dominator Widukind" as no less a man than Duke Widukind, baptised, according to the Reichenau records, in 785. Widukind was an (originally "pagan") leader who between 777 and 785 waged war against Charlemagne. Those wars had ended with the Carolingian annexation of and the triumphant conversion of the Saxons to Christianity. According to Althoff, his research confirmed that those wars also ended with Duke Widukind banished to the island monastery at Reichenau and, following baptism, obliged to spend the rest of his life as a monk. Althoff's conclusions on this matter remain contentious among medievalists.