Prince Louis asked the late Queen one pressing question during the Platinum Jubilee celebrations and she had a dry response, a lip reader revealed.
During a fly-over of the Red Arrows in the late Queen Elizabeth’s last royal celebrations, little Prince Louis stole the show.
He pulled a series of playful faces during the celebrations last summer during the RAF flypast as he looked hugely excited, a few months before the monarch died.
But then at one point, Louis can be seen exchanging a few words with his great-grandmother as they were waiting for the planes and helicopters.
A lipreader revealed to the Mirror what the pair were talking about, and what Louis was so excited to know.
According to Jeremy Freeman, an expert in lipreading, just before the flypast, Louis asked: "Are the Red Arrows coming?"
To which the Queen dryly replied: "I hope so."
When the Red Arrows did show up and painted the sky red, white and blue, Louis' excitement seemed to peak after Mr Freeman said the youngster exclaimed: "Yes, yes, yes."
He also added that the Queen then said: "There it is," before Louis added: "Oh Red Arrows - whoa."
Mr Freeman picked up on another exchange when young Louis was seen covering his ears as planes roared over Buckingham Palace.
They had taken the shape of the number 70 to celebrate the number of years in the Queen’s reign.
The lipreader said that the Queen then said: "Ohh fun" with Kate saying "amazing" and Charlotte adding "Wow".
As Louis covered his ears, Mr Freeman says he said: "Woah - that was loud", while a proud Kate said to Prince William "look at him" - about their young son.
The lipreader’s revelations come as another expert revealed how Louis’ appearance during the Trooping the Colour brought out a “childlike excitement” in the Queen.
Body language expert Judi James said Louis’ cute and spontaneous behaviour rubbed off on the then-96-year-old monarch.
She was seen grinning throughout the spectacular flypast
Judi told the Mirror: "William and Kate emerged wearing their serious facial expressions, with William directing their children into position before standing apart from Kate to ensure a good spread of parental guidance.
"As the fly-past evolved though, we were treated to the strength of the bonds between the Queen and little Louis. His body language was the most spontaneous and at one point he even moved in front of the Queen.
"Leaning over the balcony, looking a lot like Prince Charles did at his mother’s coronation, his body language signals veered between an impatient slapping of his hands on the balcony to some face-rubbing and head-holding that suggested he couldn’t wait to see the planes.
"The Queen looked over at him with an indulgent facial expression though, chatting to her great-grandson as well as Kate. By the time the Lancaster flew over it looked as though Louis’s excitement had brought out some childlike excitement in the Queen, too.
"She clearly loved the roar of the engines and as Louis literally jumped up and down at the sight of the Red Arrows, the Queen smiled and chatted as though sharing the moment."
