Mark Zuckerberg and Priscilla Chan announced the birth of their third daughter this Friday: “Welcome to the world, Aurelia Chan Zuckerberg!” The couple wrote on Instagram. “You are a little blessing.”

Zuckerberg and his former Harvard University classmate welcomed their children Maxima (7) and August 5 (August 5) in 2015 and 2017, respectively.

The 38-year-old programmer and businessman mentioned the little ones in a post he made on Instagram last September, thus announcing that his 38-year-old wife was pregnant.

Zuckerberg captioned “Love” under a selfie of him smiling while holding his hand on Chan’s stomach. “I’m happy to share that Max and August will be having a new sister next year!”

The couple met in 2003 while lining up to go to the bathroom at an association party. “He was a bookish guy who was a bit out there,” Chan told The New Yorker in 2010, joking that Zuckerberg had “computer charm.” Two years later the couple got married.