The deaths of Wanda Ferragamo and Gilberto Benetton this month highlighted a challenge for some of Italy’s most well-known family businesses: With the post-war entrepreneurs who built the companies leaving the stage, they need to ensure that members of the next generation, or trusted outsiders, are ready to step up to fill the void. Some families,...

For both newcomers and those who know the life and influence of Gianni Agnelli, the new HBO documentary, Agnelli, will be a welcome treat. Nick Hooker’s film, which premieres Monday, Dec. 18 at 8 p.m., looks into the Italian magnate’s great impact on industrialization as the “Father of Fiat” and his playboy personal life, which spanned the 20th cen...