Source Data Reference for:
						City = Bologna
 Time = 1500
					
| City | Year | Size | Size Comment | Year Comment | Author | Title | Location | 
|---|---|---|---|---|---|---|---|
| Bologna | 1450 | 49,000 | Tertius Chandler | Four thousand years of urban growth | p477 | ||
| Bologna | 1483 | 36,000 | "btw 23,000 & 49,000" | Colin McEvedy | The New Penguin Atlas of Medieval History ISBN 0-14-051249-7 | p103 | |
| Bologna | 1500 | 50,000 | Paul Bairoch | La population des villes europeennes de 800 a 1850 | |||
| Bologna | 1500 | 55,000 | Tertius Chandler | Four thousand years of urban growth | p19 | ||
| Bologna | 1500 | 55,000 | Tertius Chandler | Four thousand years of urban growth | p514 | ||
| Bologna | 1500 | 55,000 | Tertius Chandler | Four thousand years of urban growth | p478 | ||
| Bologna | 1500 | 55,000 | Tertius Chandler | Four thousand years of urban growth | p539 | ||
| Bologna | 1500 | 55,000 | Jan De Vries | European urbanization 1500-1800 | p276 |