This bust -bronze (head) and coloured marble (bust)-, bequeathed to Philip III by Count Ernst of Mansfeld, Governor of the Low Countries, was in the castle of La Fontaine in Luxembourg until 1608. Thought there to depict Antoninus Pius, the subject is in fact the Roman Emperor, Hadrian (76-138AD). Five bronze portraits of this type are known, all attributed to Lombardo who based his design on an o