Ray-Ban heir escalates fight for fortune
Leonardo Maria Del Vecchio, an heir to the Ray-Ban empire built by his late father, publicly challenged his family's holding company to back his 10 billion ($11.5 billion) buyout of two siblings days before a crucial June 30 shareholder meeting. In an open letter published on the website of online newspaper Quotidiano Nazionale, which he owns, the 31-year-old on Friday accused Delfin Sarl's board of failing to provide clear explanations for its shifting position on a proposed transaction that w…

