TMZ has obtained the birth certificate of Arnold Schwarzenegger's alleged 'love child' that was conceived with his former staffer. Check out the birth certificate after the jump.  celebrity

Mildred "Patty" Baena, who worked as a housekeeper and assistant to Arnold Schwarzenegger, did not list the former Governor of California as the father.

The boy, who's seen with his mother in the photo to the left, is 13 years old now.

Check out the birth certificate that TMZ posted up on their website.

Meanwhile, Maria Shriver responded to the 'love child' report:

This is a painful and heartbreaking time," she said. "As a mother, my concern is for the children. I ask for compassion, respect and privacy as my children and I try to rebuild our lives and heal. I will have no further comment."