When Kate Middleton married Prince William in April 2010, no one was more pleased for the couple than the Queen.
William’s proud grandmother looked on as the university sweethearts tied the knot and united the nation in a day of celebration.
One courtier told The Mirror: “The Queen was so happy on the wedding day, she was practically skipping. Seeing her family full of joy but also seeing the public support and excitement touched her greatly.”
Her love and admiration for the Duke and Duchess has continued to grow as Kate has reignited interest in the family and has adapted well to the royal way of life – not an easy task.
The Queen is said to have been particularly impressed with the way the Duchess conducted herself during her first official overseas royal tour to Canada.
A source told the paper: “Canada is extremely important to the Queen and everyone was watching and wondering how Kate would do. Anyone entering the Royal Family has to work to build up trust and prove that they are committed and up to the job.
“So far, Kate has shown herself to be more than willing and more than capable.
“She is humble and keen to learn and the Queen likes that. She has grown very fond of her and recognises the impact she is having on the public.”
2012 is of particular importance to the Queen as she celebrates her Diamond Jubilee and while the entire Royal family will be involved in celebrating the momentous occasion, Kate and Wills have been keen to take a back seat and let the Queen shine.
Last year a St James's Palace spokesman told The Sun: "They are very conscious to make sure that the run-up to 2012 is the Queen's year. She quite rightly should be in spotlight.
"The Queen and the Prince of Wales are fully aware of their plan to go under the radar and are very supportive of it.
"They have the rest of their lives to be public figures and work hard on behalf of the Queen and want to keep things on a level and enjoy their marriage."
The Queen is also impressed with the fact Catherine is taking her time to focus and learn about the four charities she is involved with - Action on Addiction, East Anglia's Children's Hospices, the Art Room and the National Portrait Gallery.
A source in The Mirror added: “There is a feeling that Kate and William are doing the right thing in the Queen’s eyes by not taking on too much so they can be fully involved with the charities they do support.
“And she is impressed by Kate’s clear sense of direction about what kind of causes she is interested in.”