Silicon Valley, it looks like you officially have a new princess. Facebook CEO Mark Zuckerberg announced today that his wife聽Priscilla gave birth to a healthy baby girl. Unlike some of the celebs who keep the details surrounding their newborn on the ultra DL (ahem, Blake, we鈥檙e looking at you), Mark revealed the news via an open letter to his daughter along with a photo. Oh, and her name? It鈥檚 Max.

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Following in the unisex naming trend that鈥檚 been huge in the celebrity world this year (like Kristin Cavallari鈥檚 daughter Saylor or Blake Lively鈥檚 daughter James), it looks as though the couple opted for something super relevant but still classic. According to Nameberry, Max is typically short for Maxine and is said to mean 鈥済reatest.鈥

In the letter Mark shared he announced that he and Priscilla are launching the Chan Zuckerberg Initiative, which aims to join people across the world to help advance human potential and promote equality for all children in the next generation. He says the initial areas of focus will be personalized learning, curing disease, connecting people and building strong communities.

And to prove he鈥檚 actually serious about this new initiative, Mark writes, 鈥淲e will give 99% of our Facebook shares 鈥 currently about $45 billion 鈥 during our lives to advance this mission. We know this is a small contribution compared to all the resources and talents of those already working on these issues. But we want to do what we can, working alongside many others.鈥

What are your thoughts on this baby name pick? Share with us in the comments below.

(Photo via Facebook)