PHOTO: Meet Cynthia Nixon's Newborn Son

Cynthia Nixon, Christine Marinoni Introduce Son
Cynthia Nixon, Christine Marinoni and Max
Brian Ach/ID-PR/AP

02/12/2011 AT 09:00 PM EST

Meet Max Ellington Nixon-Marinoni!

Cynthia Nixon and Christine Marinoni pose with their newborn son – who arrived Monday, Feb. 7 – in a photo taken Friday in New York City.

Nixon, 44, and Marinoni, 43 – who delivered Max – began dating in 2004 and announced their engagement in 2009.

The Sex and the City star has two children, Samantha, 14, and Charles, 8, from her previous relationship with teacher Danny Mozes.

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