London - Britain's Queen Elizabeth has invited the Duchess of Cambridge's parents to Balmoral.
The monarch has reportedly asked Michael and Carole Middleton to spend time with her at her Scottish residence as she wants the couple to feel welcomed into her family, following the marriage of their daughter Catherine to Prince William.
A source told the Sunday Telegraph newspaper: "The queen gets on well with the Middletons and is keen to help ensure that they feel welcome at royal events.
"She would be pleased if they could join her at Balmoral for a weekend."
A royal spokesperson refused to confirm the invitation, saying: "We don't confirm guests at Balmoral. That is completely private."‘Warm atmosphere’
Last year, the couple stayed at Birkhall - the private Balmoral residence of William's father Prince Charles - but the queen was not in Scotland at the time.
News of the invitation comes just a week after the pair took part in the traditional horse-drawn carriage procession at Royal Ascot for the first time, where they followed a royal party including the monarch, the Duke of Edinburgh, Princess Beatrice and Princess Anne. The couple first met the queen in April,
just nine days before William and Catherine's wedding.
They spent more than an hour with the monarch and her husband Prince Phillip at a private lunch at Windsor, with courtiers saying there was a "warm atmosphere" at the meeting.