Princess Eugenie and Princess Beatrice might be more well known by royal watchers, but Prince William and Prince Harry’s cousins on the Spencer side–Princess Diana’s lookalike nieces Kitty, Amelia, and Eliza Spencer–are also prominent members of London’s elite society circles. In contrast, their younger brother Louis tends to stay out of the spotlight–and the 31-year-old actor is set to inherit the $130 million Spencer fortune.

Louis Spencer’s public appearances are few and far between, but the Viscount Althorp still has quite a reputation. Tatler named him one of Britain’s most eligible bachelors in 2019, calling him “tall, debonair, and very handsome,” and his dapper appearance at Meghan Markle and Prince Harry’s wedding had fans swooning. His reddish hair, scruffy beard, and Spencer family features have also drawn numerous comparisons to Prince Harry, previously earning him the nickname “Harry Lite.” The cousins also seem to be on good terms, as Louis has been photographed chatting and laughing with Harry during his rare royal appearances. 

The actor, who rang in his latest birthday on March 14, is the eldest son of Princess Diana’s brother Charles Spencer and his first wife, Victoria Lockwood. Despite having three older sisters, Kitty, Amelia, and Eliza were cut out of the Spencer family fortune due to male primogeniture (which basically means that the eldest male in the family inherits everything). When Charles Spencer dies, he will inherit his dad’s title as the 10th Earl Spencer, in addition to Princess Diana’s family home–Althorp Estate and its 13,500 acres. According to The Sun, the estate is worth about  £100 million, or $130 million.

Louis was spotted stepping in for his father to walk his sister Kitty down the aisle during her 2021 Italian wedding, but he’s also made appearances at Kate and William’s 2011 wedding as well as Meghan and Harry’s 2018 nuptials. Despite his future earl responsibilities, Louis has been chasing his dream of being an actor and goes under the stage name Louis John Lyons. 

Sources previously told The Telegraph that Louis prefers flying under the radar compared to his famous cousins, revealing, “He’s super private and gets on quietly with his thing. He’s a very talented actor and, I think, will be a brilliant one. You’d like him. He’s very low-key and genuine, decent and kind and tall.”