Duchess Catherine was asked by a young girl if Queen Elizabeth II eats pizza during a royal visit on Tuesday.
The Duchess of Cambridge - previously known as Kate Middleton before she tied the knot with William - was helping some children from St Jude and St Paul's CE Primary School make their own pizzas during a visit to the King Henry's Walk Garden in Islington, north London, using ingredients harvested from the community grounds.
During the cooking session, eight-year-old Nadirah decided to ask the big question about whether or not the 92-year-old British Monarch ever snacks on a slice.
Nadirah asked: "Has the queen ever had pizza?"
Catherine - who is married to the queen's grandson Prince William, who is third-in-line to the throne after his father Prince Charles - was stumped, but promptly replied: "You know, that's such a good question. I don't know, I don't know. Maybe next time I see her, shall I ask?"