Preheat oven to 400°F (200°C).
Place chicken thighs and potato wedges in a large baking dish.
In a bowl, whisk together olive oil, lemon juice, garlic, oregano, salt, and black pepper.
Pour the marinade evenly over the chicken and potatoes.
Add chicken broth to the baking dish.
Toss the potatoes gently to coat with the marinade.
Bake uncovered for 45 minutes.
Turn the chicken and potatoes halfway through cooking.
Continue baking until chicken is golden brown and potatoes are tender.
Garnish with chopped parsley and serve warm.