Prince Louis was among the royals who attended the traditional Christmas Day church service on Christmas Day. The four-year-old was wearing shorts and long socks as he joined his parents, the Prince and Princess of Wales, as well as brother Prince George, nine, and his sister Princess Charlotte, seven.
They were among the group of royals who walked the short distance from Sandringham House to St Mary Magdalene Church. On Twitter, some fans spoke out about Prince Louis' outfit. One tweeted: "Nothing says "we're a modern monarchy" like little boys wearing formal shorts until they're a certain age." Another wrote: "Someone asked did they travel in from 1948?"
Some liked the outfit choice. One user said: "Prince Louis's shorts matching princess Charlotte's coat. Love this."