Image: Pax of Ariberto, c.1030: Ox of St. Luke

Enamel winged ox, symbol of St. Luke the Evangelist. Detail of the "Pax of Ariberto," created around 1030 or 1040 and given to the Duomo by Archbishop Ariberto. It consists of two panels - the more elaborate one was used to decorate the box in which the cathedral's Gospel book was kept, while the other covered the Gospel book itself. In the 12th century it became part of a "Pax," a panel with a handle that was presented during the ritual of the kiss of peace.