The Olsen family has welcomed a new arrival as the WandaVision actress has welcomed her newborn baby
There is baby joy for the Olsen family as Mary-Kate and Ashley Olsen's younger sister Elizabeth has quietly welcomed her first child.
The WandaVision actress, 37, and her musician husband Robbie Arnett, 34, are now parents after keeping much of their journey to parenthood away from the spotlight.
Elizabeth was photographed in Los Angeles on Saturday, August 15, carrying a newborn in a white baby carrier, in photos published in Page Six. The sighting comes just two months after her pregnancy was confirmed in June.
© Getty Images for InStyleThe notoriously private actress had been spotted displaying her baby bump while enjoying lunch in Los Angeles, wearing a white button-down shirt open over her stomach.
The baby's arrival makes Mary-Kate and Ashley aunts again. Ashley welcomed her first child, son Otto, with husband Louis Eisner in 2023, while Mary-Kate does not have children.
Elizabeth Olsen welcomes first baby with Robbie Arnett
The new arrival marks another milestone for Elizabeth and Robbie, who have deliberately kept their relationship largely out of the public eye since they began dating in 2017.
The couple reportedly met through mutual friends while vacationing in Mexico and made their public debut later that year. They moved in together in 2018 before becoming engaged in July 2019 after three years together.
© Golden Globes 2024 via Getty ImaIn keeping with their low-key approach to their romance, Elizabeth and Robbie quietly eloped before the COVID-19 pandemic and later celebrated with a separate wedding.
"We eloped and then we had a wedding at another time," Elizabeth revealed during a 2022 appearance on The Jess Cagle Show. "It was before COVID."
© Getty Images for LACMATheir preference for life away from Hollywood's glare has continued throughout their marriage.
Speaking at the premiere of her movie Eternity in November 2025, Elizabeth described herself and Robbie as more introverted than extroverted and revealed that her perfect date night is refreshingly simple.
Her "dream date" when the couple are somewhere busy such as Los Angeles, she told People, is "cooking a meal at home and watching a movie."
Elizabeth previously opened up about becoming a mom
Motherhood is something Elizabeth had been thinking about long before welcoming her first child.
Back in 2021, the younger sister of Mary-Kate and Ashley spoke candidly about the difficulty of balancing her desire to start a family with the demands of a thriving acting career.
"At what point do I get pregnant? At what point do I have my first baby?" she said during an appearance on SiriusXM.
"Is that five years from now? Because then I only have this kind of a window."
© WireImageFive years later, that chapter has now arrived for the actress and her husband, although the couple have yet to publicly share details about their baby's name or sex.
For Elizabeth, the new arrival comes amid a career that has seen her establish an identity entirely separate from her famous older sisters.
Despite growing up with two of the most recognizable child stars in the world, Elizabeth went on to forge her own path, earning critical acclaim before becoming globally known as Wanda Maximoff, aka Scarlet Witch, in the Marvel Cinematic Universe.
