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| | PGSA - East Prussia |
 | | No less numerous are breweries, brickyards, mills and sawmills; the most significant ones are on the Lyna river in Welawa and Frydlad powiaty, on the Pregola, in Wystruc powiat, and on the Niemen in Ragneta powiat, as well as along the banks of the Niemen and on the lakes of Masuria. |
 | | The Great Elector Frederick William took advantage of Poland's critical situation during the war with Sweden [1655-1660] to free himself of his allegiance by the treaty of Wehlau, confirmed in Oliva in 1660. |
 | | His successor, Frederick, with the Emperor's consent, declared the Duchy of Prussia a kingdom, and was crowned in Królewiec in 1701. |
| www.pgsa.org /eprussia.htm (1833 words) |
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