Fans of the Royal Family are feeling confused after a clip of Prince Louis at the Queen's Platinum Jubilee celebrations has resurfaced.
The video, which has resurfaced on TikTok, shows Kate Middleton hand her youngest child Louis, 4, a drink while the Jubilee pageant is going on back in June.
The Duchess of Cambridge appears to hand the young Prince some kind of bottle or cup in an attempt to calm him down, reports Ok magazine.
Royal fans will remember, of course, that Louis completely stole the show at the Jubilee with his cheeky behaviour, pulling funny faces for the cameras.
The footage, which was originally broadcast by Sky News, has left some fans baffled as they wonder why Prince William and Kate's youngest son is still using a milk bottle at the age of four.
Confused in the comments section, one fan asked: "Louis is four... surprised to see him using a milk bottle?"
Another fans disagreed however, pointing out: "It's a sippy cup - brilliant to reduce spills, ruined clothes, chairs, rugs and less mess for someone else to clean."
Another commenter suggested: “It’s a flask bottle not a baby bottle or a sippy cup, just a normal reusable bottle, honestly people!”
"So many judgemental parents on here, who cares if it's a bottle or a sippy cup?" asked another royal fan.
Another person seemed to put the debate to rest with their observation and said: "It's not a sippy cup or baby bottle, it's a Fortnum & Mason water bottle, a gift in the gift bags given to every guest in the stands," they wrote.
According to the NHS, children being given baby bottles after the age of one is discouraged, because "comfort sucking from a bottle on sweetened drinks causes tooth decay in young children".
Prince Louis was not present for all of the Queen’s Jubilee celebrations during the first weekend in June, but he did appear alongside his family on Sunday’s Platinum Jubilee pageant, which rounded off the four day weekend with an animated selection of performances featuring contributions from all across the commonwealth.
Showing off his funny personality, Louis could be seen dancing along to the music at times, while throwing his arms up in the air, closing his eyes and jamming away - much to the amusement of his mother.
He was even seen lifting his hands up to his face and blowing a raspberry as Kate watched on, clearly finding her youngest child hilarious.
In one particularly amusing exchange , Mike Tindall, the husband of Prince William’s cousin, Zara Tindall, was seen joking around with the young prince and telling him to behave by gesturing ‘I’m watching you’ with his hands as Prince Louis giggled away.
The youngest Cambridge child also joined his parents, siblings and grandparents Prince Charles and wife Camilla, as they stood on the Buckingham Palace balcony alongside the Queen at the end of Sunday’s Jubilee Pageant.