queen elizabeth forbes 2018
Queen Elizabeth II at CORAM on Dec. 5, 2018 in London. Toby Melville - WPA Pool/Getty Images

Members of the royal family are required to follow a myriad of rules and protocol. However, in some cases changes will be made to alter what has historically been in place. Thanks to a 2013 change to a particular law, this is now the case when it comes to Princess Beatrice needing to get Queen Elizabeth II's permission in regards to who she marries.

According to Express, Princess Beatrice, along with Princess Eugenie, are now exempt from having to pass potential partners through the monarch. Due to the changes that were made to the law, only the first six people in line for the throne must secure her approval, which means that Prince Harry was the last who needed to do so.

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Under the Royal Marriages Act of 1772, all of the affected members must seek it if they have intentions to marry. The law also gives Queen Elizabeth the right to veto any marriage and guard against anyone who could "diminish the status of the royal house."

Both Prince William and Prince Harry were granted permission to marry Kate Middleton and Meghan Markle from Her Majesty. According to PopSugar, the Queen gave her "formal consent" to Harry two months prior to his 2018 wedding day.

Such was also the case in 2011 when William decided to ask for Kate's hand in marriage, which was also accompanied by a notice of approval. The declaration read, "Our Most Dearly Beloved Grandson Prince William Arthur Philip Louis of Wales, KG and Our Trusty and Well-beloved Catherine Elizabeth Middleton," according to the Mirror.

As the rules stand now, the further down the line you go, the more freedom you get in terms of decision-making.