 However, the port, swept away during the 14th century by the violent flood that removed the course of the Ombrone from the city, never had any development, also due to the incorrect economic policy of Siena and the lack of a productive background.Siena was devastated by the Black Death of 1348, and also suffered from ill-fated financial enterprises.In 1355, with the arrival of Charles IV of Luxembourg in the city, the population rose and suppressed the government of the Nova council and expelled any family associated with the Noveschi Party.