Royal fans spotted an adorable detail on Prince Louis' suit as he made his way to church for the Easter service.
The adorable young prince, four made his Easter Sunday service debut with The Firm, a staple in the royal calendar. Royal fans also noticed that Louis donned a cute tie emblazoned with little bicycles.
He attended the Windsor service along with his parents Prince William, 40, and Kate Middleton, 41, brother Prince George, 9, and sister Princess Charlotte, 7.
Louis and big brother George both wore smart navy blue jackets with George in trousers and Louis in shorts - a tradition the Royal family hold for the youngest, while William also matched in a navy blue suit and tie, OK reported.
Prince William, Kate, and daughter Charlotte were all dressed in blue tones along with George and Louis as they walked together. Princess Charlotte was seen keeping a sweet watchful eye on her younger sibling, Louis, who was a few steps behind her.
It was not Charlotte and George's first appearance at the event and the siblings appeared together last year walking hand in hand to St George's Chapel.
Louis, it is believed, was thought to be too young by his parents last year to attend.
George and Charlotte have marked several firsts together over the past few years being closer in age. Last year in June during the midst of the Platinum Jubilee celebrations the two young royals took part in their first official visit to Cardiff.
The Easter Sunday service is the first holiday the Wales family have celebrated since they moved into Adelaide Cottage - located just a few just minutes away from Windsor Castle and the chapel.
All eyes will be on The Firm in the coming months as the family gears up for the historic coronation.
Prince Harry will be there to see his father crowned, but will not be joined by his wife Meghan Markle and the King's grandchildren.
A royal source with knowledge of the Coronation plans said the King was “likely to be delighted” that Harry would attend.