On the 21st of June Warsaw was retaken by the Poles, and four days later Charles was obliged to purchase the assistance of Frederick William by the treaty of Marienburg.
CHRISTIAN DAVID GINSBURG (1831-), Hebrew scholar, was born at Warsaw on the 25th of December 1831.
He took part in the desperate defence of Warsaw against Prince Paskievich (September 6-7,1831).
The addition of large territories to the grand duchy of Warsaw after the war of 1809 aroused the fears of the tsar respecting the Poles; and he regarded all Napoleon's actions as inspired by hostility to Russia.
I think I'll postpone any further subdivision of Germany for now, and instead create a Category:Russian Poland to take the rest of the articles in Category:Poland, Silesia and Prussia, as well as articles that have failed to be categorized (like Warsaw and Lodz).