Duchy of Warsaw: Did you mean...?

Frederick II (l. 1194-1250 CE) was the king of Sicily (r. 1198-1250 CE), Germany (r. 1215-1250 CE), Jerusalem (r. 1225-1228 CE), and also reigned supreme as the Holy Roman Emperor (r. 1220-1250 CE). He was born in Jesi in 1194 CE but spent...

William II of England, sometimes called William 'Rufus' for his red hair and complexion, reigned as the king of England from 1087 to 1100 CE. The son of William the Conqueror (r. 1066-1087 CE), the younger William was loyal to his father...

Jean Sibelius (1865-1957) was a Finnish composer famous for his symphonies, the symphonic poem Finlandia, and the Karelia Suite. Although Sibelius inspired a music revival in his native country, became a figurehead for the Finnish nationalist...

Blitzkrieg ('lightning war') is a military tactic combining air and land forces deployed at speed against the enemy's weaker points while the rear lines are simultaneously disrupted by acts of sabotage and bombing. Speed, concentration, and...

The Heinkel He 111 was a medium two-engined bomber plane used by the German Air Force (Luftwaffe) during the Second World War (1939-45). Heinkel He 111s contributed significantly to such campaigns as the Battle of France, the Battle of Britain...

The Nazi-Soviet Pact, also called the Molotov-Ribbentrop Pact after the respective foreign ministers of the USSR and Germany, was a non-aggression agreement signed in August 1939. The pact allowed the leader of Nazi Germany Adolf Hitler (1889-1945...

Frederick III of Sicily (r. 1295-1337 CE) 14th-century CE mosaic in the Messina Cathedral.

Antonio I Acciaioli (r. 1403-1435 CE), Duke of Athens. Illustration from Atene Attica Descritta da suoi Principii sino all’acquisto fatto dall’Armi Venete nel 1687…, Venice, Antonio Bortoli, 1695 edition, by Francesco Fanelli

As the title indicates, this book presents the music composed and performed in Florence during its most prolific and productive time: from the Middle Ages to the end of the Baroque. This 500-year time capsule saw Florence as a politically...

In his search to secure the continuation of the Tudor line, Henry VIII of England (r. 1509-1547 CE) married an incredible six times. Some marriages were the result of passion while others were arranged for political reasons. One divorce caused...