Concordat of Worms
In the 1st century CE, it was destroyed by the Rugii, and it is next mentioned as "Viqueria" (contracted from "vicus Iriae", Iria's village) in the 10th century. After several lordships, it was acquired by the House of Savoy in 1743 with the Concordat of Worms. Five years later it became provincial capital and received the city status.