A photo of Arnold Schwarzenegger‘s illegitimate 13-year-old son has been discovered on the mother’s MySpace page. Mildred Patricia Baena, 50, posted the photo of herself and her son, whose birth date is October 2, 1997, and it was found after several major media outlets such as the Los Angeles Times uncovered her name. Arnold and his wife Maria also have a 13-year-old son, who was born just weeks before Baena’s son. Baena initially named her then-husband, whom she divorced in 2008, as the father of the boy. They also have three other children. Baena was a housekeeper for the family when she was impregnated by Arnold. She was paid $1,200 a week to perform duties such as cleaning, laundry, cooking and other chores. Interestingly, Arnold’s eldest son, Patrick, announced to his Twitter followers this week that he will now be known by his mother’s last name, Shriver. [poll=281]