Sean Ono Lennon Confirms Birth of Baby Boy, John Lennon and Yoko Ono’s First Grandchild

Sean Ono Lennon and girlfriend Charlotte Kemp Muhl have announced the birth of their baby boy.

The couple shared the happy news on social media Tuesday evening. Alongside a photo with their son posted to Instagram, Sean captioned that they had “created a Human Bean! His name is Aurelius! Thank you!” Aurelius is the first grandchild of Yoko Ono and John Lennon.

 

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Un post condiviso da Sean Ono Lennon (@sean_ono_lennon)

Sean shared additional photos of himself and Kemp Muhl holding Aurelius, and in one caption wrote: “Baby Momma!”

 

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Un post condiviso da Sean Ono Lennon (@sean_ono_lennon)

While Sean has largely kept his private life out of the spotlight, the musician has discussed being the “caretaker” of his father, the Beatles, and his mother’s legacy. In December 2025, Sean spoke to CBS Sunday Morning, and said he had “technically” taken over the role of custodian of his father’s legacy, which his mother, Yoko Ono, has protected and shaped throughout the decades.