Kate Middleton and Prince William in April 2023
Kate Middleton and Prince William's united front has been cracking for months.

Exactly a week after Prince Harry and Meghan Markle's interview with Oprah Winfrey catapulted the royal family into crisis in March 2021, Prince William and Kate Middleton released a photo on Mother's Day in the UK.

The picture, posted to their joint Instagram on March 14, 2021, was of a cake they said their three children made to remember Princess Diana. It was endearing and casual, far from Kate and William's typical social-media content.