Pool/Sam Hussein/WireImagePrince George turned 6 years old on Monday and received well-wishes from royal admirers near and far.
One of these celebratory messages came from Domhnall—the mascot of the Irish Guards. The darling dog's handler took to Instagram on Monday to share a special message from his four-legged friend.
"Domhnall and the Irish Guards would like to wish HRH Prince George a very happy birthday," the caption read. "Always ready to serve."
The post showed the pooch sitting next to George and Princess Charlotte while their dad, Prince William, stood behind them and held their baby brother Prince Louis.
The photo appeared to be taken earlier this month at the King Power Royal Charity Polo Day. Charlotte donned an adorable floral print dress for the outing while her brothers wore polos and shorts. The Duke of Cambridge kept it a bit more formal by wearing a classic suit.
Prince Charles and Camilla, Duchess of Cornwall also wished the young royal a "happy birthday" via Clarence House's Instagram account. William and Kate Middleton did so, as well and even posted a few personal photos of their firstborn on Kensington Palace's account. Prince Harry and Meghan Markle also sent a celebratory message via Instagram. However, some royal admirers were upset over their well-wishes as the Duke and Duchess of Sussex did not mention the birthday boy's name or title in their post.
So, how is George celebrating this year? While Kensington Palace hasn't confirmed any details, there have been reports that the Cambridges are enjoying a family getaway.
Happy birthday, George!