Ethan Hawke Welcomes His Fourth Child
updated 08/07/2011 AT 10:10 PM EDT
•originally published 08/06/2011 AT 12:00 PM EDT
She's the fourth child for Hawke, who also has two kids with ex-wife Uma Thurman. News of this pregnancy was first reported in April.
On Friday, the family had lunch at La Bottega in the Maritime Hotel, in Manhattan. "He was very happy," an onlooker tells PEOPLE. "Seemed like a proud daddy."
Ethan, 40, and Ryan married in June 2008. Their daughter, Clementine Jane, is now 3.
Hawke's children with Thurman are Maya, 13, and Levon, 9.
In 2006, Ethan Hawke said parenting has brought him the greatest joy and was "the only role that, if I fail, I will consider my life a failure."