 In 1543, with the Vigevanasco, was absorbed from the domains of Savoy, which since 1707 owned Lomellina.In 1818 the Vigevanasco was reunited with Lomellina, which in 1859 became part of the province of Pavia.Although in the province of Pavia, on the border of the Diocese of Vigevano, Gravellona belongs to the Diocese of Novara.