Prince Louis sparked a right royal frenzy today as he made a new appearance at today's Easter Matins service in Windsor and had a sweet encounter with his grandfather, the King, alongside his sister, Princess Charlotte. The youngest child of the Prince and Princess of Wales looked adorable in a navy suit and light blue tie.

It is the first time Louis has attended the Easter Sunday church service in three years, having skipped the past two years in favour of private family time following his mother, Prince Catherine's, cancer diagnosis. Louis, who is known for his cheeky antics during royal events, looked all grown up as he walked beside his father, Prince William and the rest of the Wales family, Princess Catherine, Prince George and Princess Charlotte.

While waiting for King Charles and Queen Camilla to enter St George's Chapel, the camera caught an adorable moment between the monarch and his grandchildren.

As the King made his way into church, he moved his hand towards Louis and Charlotte, who were standing next to each other and softly touched the cheeks of one of them before moving ahead.

Today marks one of the biggest gatherings of senior royals since Andrew Mountbatten-Windsor's arrest and marks a key show of solidarity.

Aside from the Waleses, other royals attending today's traditional service include Princess Anne and Sir Timothy Laurence, Prince Edward and James, the Earl of Wessex, Peter Phillips and Harriet Sperling and Savannah, Isla and Harriet's daughter, Georgina.

The Duchess of Edinburgh was notably absent.

Her no-show quickly sparked questions online, with many asking why such a familiar face was missing from the annual gathering.