Ottonian
adjective
Ot·to·ni·an
(ˈ)ä¦tōnēən
: of, relating to, or characteristic of the reigns (936–1002) of the first three Ottos of Germany and the Holy Roman Empire or of the arts that flourished in Germany in this period
Ottonian bronze doors in Hildesheim and Augsburg 
Art Bulletin
Art Bulletin
Word History
Etymology
German Ottonen Ottos, kings of Germany and Holy Roman Emperors (Otto I †973, Otto II †983, Otto III †1002) + English -ian