The royal mother-of-two debuted the dazzling jewellery set for the Firm's Christmas outing to Sandringham last year

Prince Edward and Duchess Sophie had a traditional royal wedding in 1999, but the early days of their romance were decidedly less formal. Queen Elizabeth II's youngest son first met Sophie in 1987 when she was working as a press officer at Capital Radio.

Much like Princess Kate, Duchess Sophie was a normal citizen prior to marrying into the Royal Family. In fact, Sophie, the Duchess of Edinburgh, had a successful career before she married Prince Edward.

The Duke and Duchess of Edinburgh once had to sleep in an unexpected location when staying at Sandringham House.

With so many stylish royals in the world, it’s hard to believe there’s even more regal fashion for Us to obsess over. But alas, there is one British dignitary whose wardrobe we just cannot get enough of these days: Sophie,

Prince William has a keen eye on his future. While King Charles III hasn't yet given up his post as monarch, it appears his heir is already preparing for when he ascends the throne. The Prince of Wales reportedly intends to continue his father's plans to "slim down" the monarchy.

The Duke of Edinburgh is currently on a visit to Estonia - just days before his wife's major milestone on Monday.