Siege of Esztergom (1241) other European states, bar Moravia, Bohemia, and the Polish duchies, which the Mongols dealt with separately. Bela's kingdom was ill-prepared for the Mongol invasion. At the time, Hungary was one of the poorest and most sparsely populated areas of Europe. The population was estimated at slightly over 2 million in the mid-thirteenth century despite its large land area, with the largest city, Esztergom, having only 12,000 inhabitants. Its armies consisted primarily of light cavalry with some light infantry, and only a handful of crossbowmen, mounted knights, and heavy infantry, in contrast to the areas further west where such troops were
Metropolitan City of Cagliari 470 km² are covered by forests, lagoons, ponds and salt marshes, the really populated area is 777.8 km². So the real population density rises to 553 Inhab./km². In 1861, the municipalities of the current metropolitan city had 67,063 inhabitants, while the city proper had 33,491. Since then the city had a population growth of 461%, while the metropolitan municipalities as an all had an increase of 644%. In that year Cagliari had a population that was the 50% of the metropolitan area, while now it is only the 36%. According to 2014 data from the Ministry of Economy and Finance,