Columbia subject headings:
Engineers--Italy--Padua--Biography.
Giovanni, da Padova, approximately 1429-1499--Criticism and interpretation.
Gonzaga family--Art patronage.
Ludovico III Gonzaga, Marquis of Mantua, 1412-1478--Art patronage.
Padua (Italy)--Civilization.
Padua (Italy)--Description and travel.
Harvard subject headings:
Fortification--Italy--Gonzaga Region--History.
Giovanni, da Padova, approximately 1429-1499.
Hydraulic engineers--Italy--Biography.
Hydraulic structures--Italy--Gonzaga Region--History.
Italy--History--15th century.
Military engineers--Italy--Biography.
Princeton subject headings:
Engineers--Italy--Padua--Biography.
Giovanni, da Padova, approximately 1429-1499.
Ludovico III Gonzaga, Marquis of Mantua, 1412-1478.
Padua (Italy)--Civilization.
Padua (Italy)--Description.