Celebrity Parents PHOTO: Meet Cynthia Nixon's Newborn Son The actress and fiancée Christine Marinoni introduce Max Ellington By Sarah Michaud Sarah Michaud Instagram Sarah Michaud is the senior news editor of PEOPLE's music vertical. People Editorial Guidelines Published on February 12, 2011 09:00 PM Share Tweet Pin Email Photo: Brian Ach/ID-PR/AP 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. PHOTOS: 2011: The Year of the Baby