Who Shares the Royal Baby's Name? 9 of the Most Famous People Named Louis

Former One Direction member, Tomlinson is also a dad to 2-year-old son, Freddie, and has his debut solo album due out later this year. He was so excited about the royal baby's name that he sent him a "welcome to the world" tweet after the name was announced: "Young Louis welcome to the world. I’ll take you under my wing lad. The Adidas tracksuit is in the post!"

Likely one of the most famous Louises to have ever lived, the New Orleans native and legendary jazz musician was famous for his unmistakeable voice and skills on the trumpet.

Gehrig was a legendary baseball player for the New York Yankees, winning the World Series six times. He's also known for his battle with ALS, which eventually led to his death at the young age of 37. His experience with the disease led to ALS being known as "Lou Gehrig's disease."

Inspiration for the name of little Prince Louis likely came from Louis Mountbatten, who was the first Earl Mountbatten of Burma, the last Viceroy of India, the First Sea Lord in the Royal Navy, and an uncle to Prince Philip and mentor to Prince Charles. Mountbatten was tragically assassinated by the Irish Republican Army in 1979.

Vuitton founded his namesake fashion house in 1854 in Paris, and has continued to be one of the best-known names in luxury fashion and goods long after his death in 1892.

Though it's popped up in the British royal family throughout the years, the name Louis is more synonymous with France's now-non-existent monarchy. Sixteen kings were named Louis before the French Revolution brought an end to the monarchy with the execution of Louis XVI, husband to Marie Antoinette. Another famous King Louis? Louis XIV, the "Sun King" who built the famed Palace of Versailles.

Fictional, yes, but who could forget Shia LaBeouf's breakout role on the early aughts Disney Channel show? Louis was the quirky, often-in-trouble brother of the Stevens family.

Nicknamed Lou, Reed was the guitarist, singer and songwriter for the iconic rock band, The Velvet Underground.

The French teacher invented Braille, the reading and writing system for the visually impaired and blind that is still widely in use today. Braille was blind himself, which inspired him to create the system.