Celebrity Celebrity Relationships Celebrity Married Life Sarah Jessica Parker Celebrates Husband Matthew Broderick's 59th Birthday: 'Grateful You Were Born' The couple tied the knot in May 1997, and share three children together By Benjamin VanHoose Benjamin VanHoose Benjamin VanHoose is an Associate Editor on the Movies team at PEOPLE. He has written about entertainment and breaking news for over five years. People Editorial Guidelines Published on March 22, 2021 09:51AM EDT Sarah Jessica Parker is celebrating husband Matthew Broderick on his 59th birthday. On Sunday, the Sex and the City star, who turns 56 on Thursday, shared an Instagram tribute to Broderick for his birthday, posting an out-of-focus photo of his cake with lit candles. In the post's caption, Parker wrote, "Happy birthday Husband. We love you and we are oh so happy, grateful you were born. XXX, your SJ and 3 besotted young Broderick's." She then shared a clearer snapshot of the brown frosted cake on her Instagram Story, adding "We love you so." The Hollywood couple tied the knot on May 19, 1997, and share three children together: twins Tabitha and Loretta, 11, and son James Wilkie, 18. Sarah Jessica Parker and Matthew Broderick Take Son to Vote for First Time Days After His Birthday Sarah Jessica Parker/Instagram Want to get the biggest stories from PEOPLE every weekday? Subscribe to our new podcast, PEOPLE Every Day, to get the essential celebrity, entertainment and human interest news stories Monday through Friday. During an appearance on SiriusXM's Quarantined with Bruce in November, Broderick opened up about his relationship with Parker. When asked what the secret is, Broderick joked, "I keep reading 'communication,' and 'she's my best friend.' Uh, any cliché you want?" "I don't know the secret at all," he admitted at the time, "but I, you know, I'm very grateful and I love her. It's amazing. I mean, I can't believe that it's been that long. It doesn't feel like it. And I can't believe my son's 18." Matthew Broderick and Sarah Jessica Parker. Jenny Anderson/WireImage RELATED GALLERY: Celebrity Secrets for a Lasting Marriage Speaking with PEOPLE back in 2018, Parker opened up about the couple's relationship dynamic. "It seems so silly, but I think you're very lucky if you like the person," she said. "I still just really like him. I'm sure I annoy him and he annoys me, but I literally learn about him every day. I'm like, 'You're doing what? You're reading what?' " "I think marriage has a lot of vitality," added Parker. "If you're fortunate, it's like this dazzling organism."