Vasto is the ancient Histonium that was founded by Diomede, the city of Frentani, then Roman, Rebel in the social War, a Social Hall of the Romans. Destroyed by Silla, later fortified by Theodoric, then aggregated to the Duchy of Benevento. In the nineteenth century it was taken and destroyed by Pepin. He also had other stories of war and passed under various feudatories. In 1463 it was besieged by Ferdinand I^. From 1496 to 1798 it belonged to the D'Avalos. Birthplace of the poet and patriot Gabrielle Rossetti and brother of the painters Gabrielle and Palizzi Smargiassi. Vasto is one of the most interesting cities in the region, owing its fame to the history, monuments and the kitchen.