The Queen and Prince Philip got married in 1947 at Westminster Abbey with the world watching, and during the royal ceremony Her Majesty made a bold decision to keep the word 'obey' in her wedding vows.
SEE: The Queen's engagement ring pays tribute to Prince Philip's family
In 1928, two years after women were permitted to own property in the same way as men, the word 'obey' was actually omitted from the Church of England service, but despite the monarch getting married almost two decades later, she still said it.
WATCH: The Queen and Prince Philip's spectacular wedding day
Netflix's The Crown, referenced the moment, claiming that it was the Queen herself who made the decision to include the word.
Later royal brides, however, did choose to remove the word from their ceremonies. Princess Diana, for example, did not pledge to obey Prince Charles, and both Kate Middleton and Meghan Markle chose not to say it either.
MORE: Why Prince Philip's sisters didn't attend his wedding to the Queen
REVEALED: 9 fascinating rules royal brides must follow
The Queen was married for 73 years
The Queen and Prince Philip's marriage lasted for 73 years until the Duke of Edinburgh sadly passed away on 9 April 2021.
During their long and happy marriage, the royal couple rarely spoke out about their union, only sharing a few words about their partner.
The royal couple wed at Westminster Abbey
Whenever they did talk about their marriage, the words came straight from the heart.
When they celebrated their golden wedding anniversary in November 1997, the Duke of Edinburgh revealed what he believed to be the secret to their long-lasting relationship.
SEE: 5 most popular royal wedding flowers – including Princess Diana's
"I think the main lesson we have learnt is that tolerance is the one essential ingredient in any happy marriage," he said during a toast to his wife.
The Queen and Prince Philip had a long and happy marriage
Going on to say: "You can take it from me, the Queen has the quality of tolerance in abundance."
Her Majesty reciprocated the love, saying: "He has, quite simply, been my strength and stay all these years, and I, and his whole family, and this and many other countries, owe him a debt greater than he would ever claim, or we shall ever know."
Like this story? Sign up to our newsletter to get other stories like this delivered straight to your inbox.