Jennifer Gates, the eldest daughter of Microsoft co-founder Bill Gates and philanthropist Melinda Gates, has welcomed her second child with her husband, Nayel Nassar. The couple shared their joy on social media, announcing the birth of their daughter, Mia, on their third wedding anniversary.

Jennifer took to Instagram on November 2 to introduce baby Mia, posting a sweet picture of the newborn resting in her crib. In the photo, Mia’s older sister, Leila, is seen peeking at her new sibling, giving followers a touching look at their growing family. Jennifer captioned the photo, “Introducing Mia, who was born on our third wedding anniversary—the best gift we could have asked for.”

Jennifer, a pediatrician, and Nayel, a professional equestrian, started dating in 2017, and they got engaged three years later. The couple welcomed their first daughter, Leila, in March 2023. In June, Jennifer shared the news of her second pregnancy, posting a photo of her baby bump with the caption, “Leila, being promoted to big sister.”

Bill and Melinda Gates, now grandparents for a second time, are thrilled with the newest addition to the family. Alongside Jennifer, they also share two younger children—Rory, 25, and Phoebe, 22. The Gates family continues to celebrate these joyful milestones, welcoming new members and cherishing their time together.