Queen Elizabeth II’s favorite grandson is not Prince Harry, according to an author.

Many believe that the Queen’s most favored grandson is the Duke of Sussex. However, Christopher Andersen dropped another name in his book “William and Kate: A Royal Love Story.”

In 2010, the palace was already secretly planning Prince William and Kate Middleton’s wedding. In 2012, the royal family would be hosting the Summer Olympics and the Queen’s 60th birthday, so the Duke and Duchess of Cambridge’s wedding was proposed to be moved in 2013. That would stretch their courtship to a full 13 years.

Prince William didn’t agree because Middleton had already waited long enough. In fact, she was branded as “Waity Katie” by the press and it would be humiliating to do so.

According to Andersen, Queen Elizabeth II supported Prince William and said that the sooner the couple’s wedding, the better. The biographer added that the Queen had already accepted Middleton in the royal fold.

“Her Majesty – ‘Granny’ to William – had long ago embraced Miss Middleton as a suitable mate for her favorite grandson. The public was unaware that, in fact, the Queen had privately rooted for Kate to win back William after their highly publicized split in 2007,” Andersen wrote.

He added that the Queen had taken a special interest in Prince William as she knew that Prince Charles would be on his ripe age when he ascends the throne, so the monarchy rested squarely on the shoulders of her grandson.

When Prince William was just 5, the Queen began a ritual that would last until he enrolled in college. Every week they would reunite for a tea at Windsor Castle or Buckingham Palace where they would bond and discuss his school, sports, movies he liked and the music he listened to. The Queen would then slip in a history lesson now and again.

“William cherished these moments with Granny – tutorials in kingship that she had never bothered to give her own son.”

Queen Elizabeth II and Prince William’s closeness is obvious in their photos over the years. Just recently, throwback photos of the Queen and the Duke of Cambridge were shared on Instagram where they can be seen chatting and smiling at each other.

Princes Harry, William, Queen Elizabeth
Pictured: Princes Harry, William, Queen Elizabeth II look on after attending the Trooping of the Colour ceremony June 14, 2003 in London, England. Scott Barbour/Getty Images