(912–73), king of the Germans 936–73, Holy Roman emperor 962–73; known as Otto the Great. As king of the Germans he carried out a policy of eastward expansion and as Holy Roman emperor he established a presence in Italy to rival that of the papacy.
Definition of Otto I in US English:
Otto I
proper noun
(912–73), king of the Germans 936–973, Holy Roman Emperor 962–973; known as Otto the Great. As king of the Germans he carried out a policy of eastward expansion, and as Holy Roman Emperor he established a presence in Italy to rival that of the papacy.