There is no more splendid example of European dress as high political propaganda than the ceremonial armor made for the Hapsburg Holy Roman Emperors Maximilian I and Charles V and for Charles’ son, Philip II of Spain. They employed the greatest sculptural metalworkers on the continent and none was greater than the Milanese, Filippo Negroli. His work and that of his finest German contemporaries are well-represented in The Art of Power: Royal Armor and Portraits from Imperial Spain at the National Gallery of Art (NGA), and only in Washington, for the exhibition is not traveling, through November 1, 2009 .