Prince Harry isn't the only one who's standing up for his wife. Prince William took a stand against his grandfather, Prince Philip, for the sake of his relationship with Kate Middleton. In the book, "William's Princess," veteran royal editor Robert Jobson describes the moment which took place early on in their courtship.

"It was strongly suggested to [Prince William] by his grandfather, Prince Philip, that he ought to go into the Royal Navy. He was told it would be a fitting choice for the future King," Jobson wrote in the 2006 book (via Express).

"The prospect of months at sea was not one that inspired him. Instead, he chose to train at Sandhurst, the elite military academy. It was a decision that led many royal writers to point light-heartedly to the potential embarrassment of William having to salute his younger brother as his superior." the book continued.

“It was a minimal price for William, and one well worth paying if it meant remaining on the same soil as Kate," Jobson explained. "...he stood his ground and won."

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Seeing where Prince William and Kate are today, his defiance was not in vain. The Duke and Duchess of Cambridge married in April 2011 and have since grown their family. They currently have three children together, Prince George, 6, Princess Charlotte, 4, and Prince Louis, 1, and there has been speculation that another little one could be on the way.

During a recent visit to a children's hospital, Kate was spotted without her engagement ring. As previously reported, some believed that her fingers were swollen due to a potential fourth pregnancy. In addition to the missing ring, she placed her hand on her belly, a common gesture for pregnant women.

At the moment, nothing has been confirmed regarding the expansion of the Cambridge family, however, Kate did reveal that it's not something that's on her husband's mind.

"I don’t think William wants any more," Kate told royal fan Josh Macpalce in early January.

Prince Harry and Prince William
Prince Harry and Prince William are photographed. AFP/Tolga AKMEN