Watch Keira Knightley Explain the Mistake Behind her Name

Apparently the unique name of one of the world’s most bankable celebrities is thanks to a delivery room error. Keira Knightley admitted to Jimmy Kimmel that her parents planned to name her after Kira Ivanova, a Russian figure skater, but her mother made a mistake on the birth certificate.

Still, the accident may have worked to make Knightley even more distinct in her field — in 2006, the year after Pride and Prejudice came out, “Keira” nearly broke the top 100 female baby names in the U.S.