Columbia subject headings:
Art, Italian--Italy--Urbino.
Federico, da Montefeltro, Duke of Urbino, 1422-1482.
Urbino (Italy)--History--15th century.
Harvard subject headings:
Federico, da Montefeltro, Duke of Urbino, 1422-1482--Congresses.
Urbino (Italy)--Civilization--Congresses.
Princeton subject headings:
Art, Italian--Italy--Urbino.
Federico, da Montefeltro, Duke of Urbino, 1422-1482.
Urbino (Italy)--History--15th century.