All other German towns [controlled] only 100 square kilometres or less

Italy, where around 25 cities each controlled at least 1,000 square kilometres, with Florence possessing 12,000 square kilometres by 1400, while Venice amassed nearly three times that across 1339-1428. By contrast, only Nuremberg came close, with 1,650 square kilometres, while Ulm had 930 square kilometres and all other German towns only 100 square kilometres or less.

P.H. Wilson, The Holy Roman Empire (2016),  518