View this post on Instagram

[1]

Naomi Watts [2] was one proud mom on Monday when she took to Instagram to wish her eldest son, Alexander Pete (whom she calls Sasha), a happy birthday. "Happy birthday to our first little miracle," she wrote. "Sweet Sasha is adventurous, loving and kind. A powerful beam of light in our family. Feel so blessed to watch him grow." In the cute photo, the actress wraps her arms around her son while he dons a crown and matching gold necklaces that say happy birthday. So cute! Naomi welcomed Alexander back in 2007 with her longtime partner, Liev Schreiber [3]. His first name was chosen after Liev's grandfather [4] and his middle name, Pete, is in honor of Naomi's father. The pair are also parents to 7-year-old Samuel Kai [5].