THE REAL menage a trois

Ménage à Trois in Knightsbridge, where Camilla and Diana dined together, was the ultimate place for ‘ladies who lunch’ in the early 80s. It was designed specifically as ‘a restaurant for women’ by its creator Antony Worrall Thompson, and the menu was made up entirely of starters and puddings – spawning the catchphrase ‘no intercourse’.

‘I’d taken a lot of women out to dinner and I noticed they always wanted two starters,’ said Worrall Thompson of his first restaurant, which opened in 1981. Diana later described the lunch with Camilla as ‘very tricky indeed’. She recalled to Andrew Morton that Camilla asked if she was going to hunt. ‘I said, “On what?” She said, “Horse. You are not going to hunt when you go and live at Highgrove, are you?” I said, “No.” She said, “I just wanted to know.”’

The lunch with Camilla (Emerald Fennell). Below: the real Diana at the restaurant a few years later