DM Tip: Plan Smarter (Not Harder) with Generators – All About donjon – Amethyst Wulf Games
Medieval Demographics made better — ProFantasy Community Forum
Believable Population Size for a City on Your Fantasy Map — Map Effects
Life expectancy - Wikipedia
Medieval Demographics Online | The Welsh Piper
Get Medieval: The Town in the Middle Ages – Ludus Ludorum
Como Criar Cidades Simples – Dark Alley Games
Como Criar Cidades Simples – Dark Alley Games
In some sources, the population of Rome dropped very low during the middle ages, and as low as 17,000 in 1347AD. How reliable are these numbers? - Quora