MILAN, Italy — Italian fashion giant Benetton’s net loss almost tripled to 230 million euros in 2023, amid a row between the brand’s co-founder and its current chief executive. This includes a write-down of 150 million euros, according to sources close to the group. Since 2013, the group has accumulated losses of more than one billion euros. Turnover last year was 1.09 billion euros, practically unchanged from 2022. The company recorded an opera…