But the youngster will still be behind his cousins Prince George and Princess Charlotte, by virtue of their father - Prince William - being older than Harry and second in line to the throne. As the ceremony nears, we are waiting with impatience to discover the gown of the bride, but also the uniforms of its famous guests. What will they be during the event?
The gesture was interpreted as a sign that Meghan remained a down-to-earth woman without pretences, despite being married to the grandson of Queen Elizabeth II. The Duchess of Cambridge should therefore opt for an outfit with Alexander McQueen and the Duchess of Sussex should choose Givenchy.
One fashion PR insider, who spoke on condition of anonymity, recalled a time when an order for a dress by a top-name Australian designer arrived through its online shop, to be sent to "M Markle" at Buckingham Palace.
Meghan Markle's ex-husband Trevor Engelson has had his own fairytale wedding over the weekend as he tied the knot with nutritionist Tracey Kurland, the daughter of a multi-millionaire banker.
According to the Daily Express, the reason that Kate isn't known as "Her Royal Highness Princess Catherine" is pretty simple. But just like her mother-in-law, Camilla, she may choose to stick with the title of Duchess.
Meghan was spotted sitting alongside Princess Anne and chatting with her ahead of the wedding of Princess Eugenie and Jacks Brooksbank. We look forward to the discover Friday!