The Ottonian dynasty (919–1024) was a lineage of Saxons named after three of its rulers: Otto the Great, his son Otto II, and his grandson Otto III. The Ottonian empire encompassed the lands that are now Germany, Switzerland, and northern and central Italy. Ottonian craftsmen excelled in ivory carving and fine metalwork, while Ottonian scriptoria produced elegant illuminated manuscripts. Web resources here and here.

Christ Appearing to His Disciples and the Doubting of Thomas (one of the reliefs donated to Magdeburg Cathedral by Otto the Great). Ivory. Ca. 962-73. Bavarian National Museum, Munich.