szlachcic, Piotr Orda. Demographics and stratification The szlachta differed in many respects from the nobility in other countries. The most important difference was that, while in most European countries the nobility lost power as the ruler strove for absolute monarchy, in the Polish–Lithuanian Commonwealth a reverse process occurred: the nobility actually gained power at the expense of the king, and enabled the political system to evolve into an oligarchy. Szlachta members were also proportionately more numerous than their equivalents in all other European countries, constituting 6–12% of the entire population. By contrast, nobles in other European countries, except for Spain, amounted to a mere 1–3%. Most of the szlachta were "minor nobles" or smallholders. In Lithuania the minor nobility made up to 3/4 of the total szlachta population. By the mid-16th century the szlachta class consisted of at least 500,000 persons (some 25,000 families). Polish historian Tadeusz Korzon carried out an estimation of the social structure of Poland based on the documents of 1770–1780s, such as tax registers, partial censuses, etc. His estimate for the number of szlachta was 725,000 of total population 8.8 million. For comparison with other social classes, Christian clergy counted 50,000, Christian mieszczaństwo (burghers) counted 500,000, peasants of various categories (): 6.4 million, Jews (the fast growing group), e.g., 750,000 in 1764 and 900,000 in 1790. Korzon counted Armenians, Tatars, Greeks, and Russian raskolniks as separate social groups, totaling 250,000-300,000. The proportion of nobles in the population varied across regions. In the 16th century, the highest proportion of nobles lived in the Płock Voivodeship (24,6%) and in Podlachia (26,7%), while Galicia had numerically the largest szlachta population. In districts, such as Wizna and Łomża, the szlachta constituted nearly half of the population. Regions with the lowest percentage of nobles were the Kraków Voivodeship with (1,7%), Royal Prussia with (3%) and the Sieradz Voivodeship with 4,6%. Before the Union of Lublin, inequality among nobles in terms of wealth and power was far greater in the Grand Duchy of Lithuania than in the Polish Kingdom. The further south and east one went, the more the territory was dominated by magnate families and other nobles. In the Lithuanian and Ruthenian palatinates, poor nobles were more likely to rent smallholdings from magnates than to own land themselves. It has been said that the ruling elites were the only socio-political milieu to whom a sense of national consciousness could be attributed.