Gianni – as he was known to differentiate from his grandfather, with whom he shared his first name – inherited the command of Fiat and the Agnelli family assets in general in 1966, following a period in which Fiat was temporarily "ruled" by Vittorio Valletta while Gianni was learning how his family's company worked. Agnelli raised Fiat to become the most important company in Italy, and one of the major car-builders of Europe. He also developed the accessory business, with minor companies also operating in military industry. Agnelli and Fiat would come to share a common vision, Agnelli meaning Fiat and, more sensibly, Fiat meaning Agnelli.