Dobrzyn Land
Dobrzyń Land (Polish: ziemia dobrzyńska) is a historic region, with the capital in the town of Dobrzyń nad Wisłą, in central-northern Poland, within the Greater Poland, between Mazovia and Prussia. It lies northeast of the Vistula River, south of the Drwęca, and west of the Skrwa. The territory approximately corresponds with the present-day powiats of Lipno, Rypin, and half of Golub-Dobrzyń within the Kuyavian-Pomeranian Voivodship, although it encompasses parts of other counties as well. Totally, it has about 3,000 km2 and 200,000 inhabitants.
Those areas have been a part of Piast state probably since the duke Mieszko I of Poland (960–992). Upon the death of his descendant Duke Bolesław III Wrymouth in 1138, they were allocated to the newly established Duchy of Masovia. In his Prussian Crusade, Duke Konrad I of Masovia in 1228 established the Order of Dobrzyń of German knights (fratribus militiae Christi in Prussia), whom he vested with the Dobrzyń estates. Soon after however, this order was absorbed by the Teutonic Knights, who had established the Order's State in the adjacent Chełmno Land. During the whole second half of 13th century it belonged to Kuyavian Piasts, the new branch of Mazovian dynasty. Finally, along with their other states, it became a part of resurrected Kingdom of Poland.
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