Meghan Markle's 1-word joke that left Kate Middleton silent at her first Trooping the Colour in 2018

Kate Middleton and Meghan Markle once had a silence so awkward during the Duchess of Sussex’s first appearance at Trooping the Colour, that it "threatened to swallow us all whole," according to Prince Harry.

Harry wrote in his memoir "Spare" that he and Markle returned from their Mediterranean honeymoon in 2018 "just in time for the official June celebration of Granny’s birthday."

He added that Trooping the Colour was one of their first public appearances as a married couple following their May 19, 2018, wedding.