Peter III of Aragon lands at Trapani to intervene in the War of the Sicilian Vespers.

Peter III of Aragon was King of Aragon, King of Valencia, and Count of Barcelona from 1276 to his death. At the invitation of some rebels, he conquered the Kingdom of Sicily and became King of Sicily in 1282, pressing the claim of his wife, Constance II of Sicily, uniting the kingdom to the crown.

Trapani is a city and municipality (comune) with 54,887 inhabitants, on the west coast of Sicily, in Italy. It is the capital of the Province of Trapani. Founded by Elymians, the city is still an important fishing port and the main gateway to the nearby Egadi Islands.

The War of the Sicilian Vespers, also shortened to the War of the Vespers, was a conflict waged by several medieval European kingdoms over control of Sicily from 1282 to 1302. The war, which started with the revolt of the Sicilian Vespers, was fought over competing dynastic claims to the throne of Sicily and grew to involve the Crown of Aragon, Angevin Kingdom of Naples, Kingdom of France, and the papacy.