Athens

The Duchy of Athens was a crusader state in Attica and Boeotia, ruled from Thebes. In 1337 its duke was William of Aragon, a vassal of Sicily, and Catalan was its administrative language.

In 1388 the Florentine Acciaioli family captured Athens. The duchy became tributary to the Byzantine despot Constantine in 1444, but Ottoman forces conquered Athens in 1458, ending Latin rule over the city.