Source Data Reference for:

City = Istanbul
Time = 1300

City	Year	Size	Size Comment	Year Comment	Author	Title	Location
Constantinople	1250	100,000			Tertius Chandler	Four thousand years of urban growth	p473
Constantinople	1300	100,000			Tertius Chandler	Four thousand years of urban growth	p17
Constantinople	1300	100,000			Tertius Chandler	Four thousand years of urban growth	p474
Constantinople	1300	100,000			Tertius Chandler	Four thousand years of urban growth	p528
Constantinople	1300	100,000			Tertius Chandler	Four thousand years of urban growth	p522
Constantinople	1300	100,000			Tertius Chandler	Four thousand years of urban growth	p538
Constantinople	1346	87,500	"btw 50,000 & 125,000"		Colin McEvedy	The New Penguin Atlas of Medieval History ISBN 0-14-051249-7	p89