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
Jewish population by country provided here from the Virtual Library. For European countries, further information is provided by the Institute for Jewish Policy Research, including an interactive map of core and enlarged Jewish population that generally corresponds to DellaPergola's figures. Country populations used to deduce the "Population per Jewish Person" column in the table are taken from the CIA World Factbook, with most estimates current as of July 2014. The above table represents Jews that number at least a few dozen per country. Reports exist of Jewish communities remaining in other territories in the low single digits that are on the verge of disappearing,