Press said the conversation appeared light-hearted as they waited for the historic occasion to begin, with Harry possibly discussing an event happening on Sunday.
She claimed the Prince, who is not at the service with the Duchess of Sussex or their two children, smiled at Mr Brooksbank and said: ‘That’s funny, mmm interesting’.
To an unknown question from Mr Brooksbrook, Prince Harry said: ‘About quarter to 4?’
Mr Brooksbank then replied: ‘Oh really, when?’ to which the Duke responded: ‘I think tomorrow…’
Prince Harry was spotted chatting to Jack Brooksbank as he entered the Abbey; lip reader Jacqui Press told MailOnline the pair had a light-hearted conversation
Upon arriving at the Abbey, the Duke of Sussex also chatted with Edoardo Mapelli Mozzi, Princess Beatrice’s husband
Prince Harry jetted into the UK on Friday morning and received a warm welcome from members of the royal family outside Westminster Abbey today
Earlier, Prince Harry, who chatted with both Prince Edward and Edoardo Mapelli Mozzi on his way in, addressed the well-wishers and congregation, saying: ‘Morning, morning, how are you doing?’
One person in the crowd told him, ‘You look smart’, says Press, as the suited and booted prince walked into the Abbey for his father’s Coronation.
The Duke of Sussex was seated between Princess Eugenie’s husband Jack Brooksbank and Princess Alexandra, the cousin of the late Queen who has not worked as a royal for ten years.
They were joined by Prince Andrew’s daughters Eugenie, 33, and Beatrice, 34, and her husband Edoardo Mapelli Mozzi.
The Duke of Sussex was seated between Princess Eugenie’s husband Jack Brooksbank and Princess Alexandra, the cousin of the late Queen who has not worked as a royal for ten years
Time to catch up: Prince Harry and Princess Beatrice walk outside Westminster Abbey
Prince Harry has been invited to lunch at Buckingham Palace today following the historic Coronation of his father King Charles III at Westminster Abbey, it has been reported.
It is not yet known, however, if the Duke of Sussex, 38, will accept, given that he is expected to rush back to California to reunite with his wife Meghan Markle to celebrate their son Archie’s fourth birthday.
The invitation will be seen by many as an olive branch from Charles after Harry’s explosive memoir Spare left several members of the Royal Family reeling – most notably his brother Prince William.
Only the senior working royals had a front row seat to the historic ceremony: Picture: Prince William and Princess Catherine of Wales and their children Princess Charlotte and Prince Louis
Thousands gathered on the Mall this morning, as Charles III’s day of destiny got underway. The historic first coronation of a British monarch in 70 years at Westminster Abbey saw just over 2,000 people arriving into Westminster Abbey this morning.
The monarch had been heir since the age of three, and is now ready to finally embrace his day of destiny with the woman he loves by his side. VIP guests queued for a mile from the Abbey from 6am to get one of the prime 2,300 seats inside.
Charles will be crowned in a Christian ceremony that dates back for 1,000 years on a day dripping with glorious displays of pageantry. It will also shine a spotlight on Britain’s place on the world stage.
His family, including Prince Andrew and Princess Anne, enjoyed a dinner at Mayfair club Oswald’s last night. Mike and Zara Tindall were out until 2am. Prince Harry flew in from Los Angeles yesterday for his 24-hour trip. It emerged last night he has been relegated to the third row in the Abbey with other non-working royals.
Around 100million are watching on TV around the globe, with around two million people – from all corners of the UK, Commonwealth and the world – in London for the historic event.
Guests of the King started arriving at the Abbey from 7am – four hours before the ceremony. Some 100 heads of state are in London, with representatives from 203 countries are attending.