Columbia subject headings:
Christian art and symbolism--Italy--Rome--Medieval, 500-1500--Congresses.
Church architecture--Italy--Rome--History--To 1500--Congresses.
City planning--Italy--Rome--History--To 1500--Congresses.
City planning--Religious aspects--Christianity--Congresses.
Paschal I, Pope, -824--Art patronage--Congresses.
Paschal I, Pope, -824--Congresses.
Popes--Biography--Congresses.
Rome (Italy)--History--476-1420--Congresses.
Harvard subject headings:
Christian art and symbolism--Italy--Rome--Medieval, 500-1500--Congresses.
Church architecture--Italy--Rome--History--To 1500--Congresses.
City planning--Italy--Rome--History--To 1500--Congresses.
City planning--Religious aspects--Christianity--Congresses.
Paschal I, Pope, -824--Art patronage--Congresses.
Paschal I, Pope, -824--Congresses.
Popes--Biography--Congresses.
Rome (Italy)--History--476-1420--Congresses.
Princeton subject headings:
Christian art and symbolism--Italy--Rome--Medieval, 500-1500--Congresses.
Church architecture--Italy--Rome--History--To 1500--Congresses.
City planning--Italy--Rome--History--To 1500--Congresses.
City planning--Religious aspects--Christianity--Congresses.
Paschal I, Pope, -824--Art patronage--Congresses.
Paschal I, Pope, -824--Congresses.
Popes--Biography--Congresses.
Rome (Italy)--History--476-1420--Congresses.