The Queen and Prince Philip got married in 1947, and the royal wedding had a mammoth guest list of 2,500 people, but it did not include the Duke of Edinburgh's sisters, who were actually forbidden from attending due to the war.
The Sun reported that his three sisters were declined an invite to the royal wedding by order of the King, because they had all married German princes. The wedding was a mere two years after the end of World War II and tensions were still high in Britain.
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All four of Philip's sisters, Princess Margarita, Princess Theodora, Princess Cecilie, and Princess Sophie, married into German royalty, but sadly Cecile sadly passed away in a plane crash in 1937, 10 years before her brother would marry a British royal.
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As reported in The Sun interview, Lady Pamela Hicks, Prince Philip's cousin, has since spoken out about the controversial decision. "So soon after the war, you couldn't have the Hun," she said, going on to report that she thought Philip himself understood the sacrifice.
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Princess Sophie, one of Prince Philip's sisters
However, the shun wasn't as well received the other end, with Lady Pamela confessing that the sisters asked: "Why weren't we allowed to come to your wedding?"
The royal wedding was a massive affair
For those who were in attendance, the royal wedding was a magical affair, beginning when Princess Elizabeth, just 21 at the time, walked down the aisle in Westminster Abbey.
The bride wore a stunning lace gown made by Sir Norman Hartnell, and their iconic day, which played out like a fairytale, also included a 9ft tall wedding cake which was cut with the Duke's Mountbatten sword (a wedding present from The King).
The couple had a 9ft wedding cake
The couple made history for having the longest marriage of any British sovereign, and the Queen has always spoken very highly of her 'rock' who sadly passed away on 9 April, aged 99.
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