In a large bowl, combine chicken, olives, garlic and apricots. Then, whisk together the oil and vinegar, oregano, and salt and pepper. Pour mixture over chicken, cover, refrigerate, and let marinate overnight.
Remove chicken from refrigerator 1 hour before cooking. Preheat oven to 375 degrees.
Pour chicken and any remaining marinade into a large baking dish. Pour the wine over the chicken, then sprinkle with the brown sugar.
Place in the oven and bake for 45 minutes to 1 hour, basting and turning the thighs every 20 minutes or so, until the juices run clear.
Notes
The entire recipe makes 6 servingsThe serving size is 1 chicken thigh with sauce