Shortly after Prince Louis was born, a tweet posted by the Wizarding World revealed that the child was "named after three iconic Weasleys." For surface-level "Harry Potter" fans, the name Arthur is the most recognizable as it's the name of the Weasley patriarch, Arthur Weasley. In the books and in the films, Mr. Weasley played an extraordinary role in Harry Potter's life. Not only was he instrumental in helping Potter from time to time, but he was also a father figure to the orphan, accepting him into the family on holidays and inviting him to family events, such as Bill Weasley and Fleur Delacour's wedding.

Meanwhile, Louis and Charles are also names of Weasley family members, though they may be lesser known. Charlie is one of Ron Weasley's brothers — the one who had a keen interest in dragons. As the story goes, Charlie was a star Quidditch player who decided to move to Romania to "study dragons," according to Pottermore.

And, as for Louis Weasley, the lesser-known of the Weasley bunch, well, he was one of Bill and Fleur's kids. For those who read the "Harry Potter" series, Louis Weasley was introduced in the "Deathly Hallows" epilogue. Not unlike Prince Louis, Louis Weasley is the youngest of three siblings; he has two older sisters, Victoire and Dominique. Prince Louis is the younger brother of Princess Charlotte and Prince George.