1. Preheat oven to 380F (190C).
2. Place chicken thighs in a large baking dish, mine was 11" x 13" (28cm x 33cm). Season with salt, pepper, oregano and rosemary. Add lemon zest, lemon juice, minced garlic and olive oil.
3. Place potatoes in dish with the chicken thighs, toss until chicken and potatoes are coated with marinade. Keep chicken skin side up.
4. Bake in the preheated oven for 25 minutes. Remove from the oven, spoon juices over chicken and potatoes, bake for another 20 minutes, or until the chicken is nicely browned.