Similarly, you may ask, what was the average population of a medieval city?
Big Cities range from 12,000-100,000 people, with some exceptional cities exceeding this scale. some historical examples include london (25,000- 40,000), Paris (50,000-80,000), Genoa (75,000- 100,000), and venice (100,000+). Moscow in the 15th century had a population in excess of 200,000!
One may also ask, what is the ideal size of a city? Under this concept, with a density of 50 people per hectare, the ideal city size would be 160,000. For a city, where the population would have access to public transport, Keeble estimated this would be around 4 million.
Keeping this in view, how large was a medieval army?
The only realistic rule is that armies were usually never over 20,000 men strong, unless in special cases such as crusades, or insanely huge battles. Also many army numbers are greatly exaggerated by medieval historians.
How far apart were medieval cities?
Even up to the 19th century, this was generally considered to be 12 to 15 miles. If you look on a map of the eastern U.S. (Pennsylvania for example), and follow one of the highways (U.S. route 11 for example) you'll find that the towns are generally 12 to 15 miles apart. 15 miles U.S. between towns.