As King Charles prepares to take the British throne, Prince Harry attended the Coronation ceremony solo while wife Meghan Markle and their children stayed in California.
He arrived at the same time as his cousins, Princesses Beatrice and Eugenie, along with their respective husbands, Edoardo Mapelli Mozzi and Jack Brooksbank, and he was seated three rows back from the front.
Harry's lone arrival at Westminster Abbey on Saturday morning was accompanied by his courteous greetings to other guests, according to a lip reader.
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While walking in, Harry greeted some of the other guests, saying "hello", "morning" and "nice to see you" to various people.
Our lip reader has also claimed he said "look at that" while noticing the grandeur of the occasion and also said "delightful".
Body language expert Judi James explained that Harry looked nervous while he waited for Charles to arrive.
She told Mirror UK: "As Harry waited in his seat for his father and brother to arrive there were some subliminal signs of building tension or anxiety.
"He sucked his lips in and licked them and his blink rate increased, suggesting adrenalin prompted by nerves."
It is believed that seating arrangements had been one of the sticking points that had caused a delay in Harry responding as to whether he would attend the historic event.
Harry isn't sat anywhere near his brother, Prince William, with organisers reportedly keen to make sure there aren't any public rows on the big day.
After the ceremony, Harry is expected to dash off back to the States without attending a celebration concert with the rest of the British Royal Family.
Earlier this month, a royal source told The Mirror : "After much back and forth, Harry said that he would be returning for the King's Coronation but it will only be a fleeting visit.
"Organisers have been told Harry won't be attending the concert with the rest of the Royal Family, which is a great shame as it will be such a spectacular event."
Harry isn't sat anywhere near his brother, Prince William, with organisers reportedly keen to make sure there aren't any public rows on the big day.
The announcement that Harry would be attending the Coronation without Meghan ended months of speculation.
In a statement, the Palace: "Buckingham Palace is pleased to confirm that the Duke of Sussex will attend the Coronation Service at Westminster Abbey on 6th May.
"The Duchess of Sussex will remain in California with Prince Archie and Princess Lilibet."
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