The kingdom lost Pomerania and Silesia, the most highly developed and economically important regions of the original ethnically Polish lands, which left half of the Polish population outside the kingdom's borders.
波兰王国失去了波美拉尼亚和西里西亚，这两个地方是波兰人原先居住的地方中，最发达且在经济上居最重要地位的，这使半数波兰人都留在波兰王国边界之外。