Analysis of information sources in references of the Wikipedia article "Kingdom of Bohemia" in English language version.
The Luxemburg project halted under Charles IV's elder son, Wenceslas (r. 1363–1419 in Bohemia, 1376–1400 in Germany), who inherited a Bohemian kingdom endowed with a population of some 2 million
Around 1400 the population of Bohemia was about 2 million
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: CS1 maint: location missing publisher (link)The Luxemburg project halted under Charles IV's elder son, Wenceslas (r. 1363–1419 in Bohemia, 1376–1400 in Germany), who inherited a Bohemian kingdom endowed with a population of some 2 million
Around 1400 the population of Bohemia was about 2 million