Duchy of Warsaw: Did you mean...?

The Duchy of Athens was a Latin or Frankish state in Greece that existed from 1205 to 1458 CE. It was created in the aftermath of the Fourth Crusade (1202-1204 CE) and would be ruled for the majority of its history by the Burgundian de la...

Prince Józef Poniatowski (1763-1813) was a Polish soldier and patriot, who served as commander-in-chief of the Polish army during the Napoleonic Wars (1803-1815). A steadfast ally of French Emperor Napoleon I (r. 1804-1814; 1815), Poniatowski...

Thessaly was an independent state in medieval Greece from 1267 or 1268 to 1394 CE, first as the Greek-ruled Thessaly and later as the Catalan and Latin-ruled Duchy of Neopatras. Under its sebastokrators, Thessaly was a thorn in the side of...

During the Warsaw Ghetto Uprising (April-May 1943), SS and SD officers force a group of Jews to leave their shelter. Second from the right, pointing a submachine gun at a Jewish boy holding his hands above his head, is SS-Rotenfuerer Josef...

A photograph showing a walled-off Jewish ghetto in Warsaw following the German occupation of Poland from September 1939. (Imperial War Museums)

A photograph showing the damage to Warsaw following the German invasion of Poland in September 1939. Photograph taken in October. Imperial War Museums

Adolf Hitler (1889-1945) reviewing a victory parade in Warsaw following the German invasion of Poland in September 1939. Photo taken on 5 September. (Imperial War Museums)

The Despotate of the Morea was a semi-autonomous appanage of the later Byzantine Empire. The Byzantines retook part of the Peloponnese in Southern Greece in 1262 CE, but the Morea was only officially governed by semi-autonomous despots of...

Joachim Murat (1767-1815) was a French cavalry officer who fought in the French Revolutionary Wars (1792-1802) and Napoleonic Wars (1803-1815). He was appointed marshal of the French Empire in 1804, Grand Duke of Berg in 1806, and ruled as...

Frédéric Chopin (1810-1849) was a Polish composer and virtuoso noted for his solo piano music. Chopin's work helped make the piano the most popular musical instrument of the 19th century. One of the great composers of Romantic music, Chopin's...