It was not until 2008 that she met the Queen after their relationship became serious. The Duchess of Cambridge's parents were also invited to meet the Queen for a warm and friendly lunch. Queen Elizabeth wanted to help Catherine feel attached to her new family, similar to how she was concerned about Princess Diana. According to a royal source.

Queen Elizabeth hosted Carol and Michael Middleton at Windsor Castle to facilitate the introduction. The lunch was described as enjoyable and full of laughter, lasting less than an hour and a half. The Queen wanted to be kind and never lingered over the meal. The death of Queen Elizabeth II brought to an end the longest reign in British history. She was the longest-reigning monarch and a beloved grandmother. Her dedication to royal duties was widely known.

But her love for her family has touched the hearts of many through personal stories and photographs. Catherine may have had direct contact with the Queen, allowing her to share her thoughts about her children: Prince George, Princess Charlotte and Prince Louis. Catherine often mentioned the Queen's affection for Charlotte and Louis.

In a 2016 documentary, she spoke about how delighted the Queen was when Charlotte was born, highlighting her role as a caring family member. Catherine recalled a memorable engagement with the Queen in March 2019, where the Queen made sure she felt supported and comfortable. The late monarch showed her caring nature in many small ways.

A heartwarming moment shared between the Queen and Prince Louis took place during the Platinum Jubilee flight in 2022. Just two days before the Queen passed away, Louis consoled his mother by suggesting that the Queen was with her great-grandfather, demonstrating the special bond they have shared across generations.