Italian Chicken with Artichoke Sauce

Name: Italian Chicken with Artichoke Sauce
Ingredients: 4 skinless, boneless chicken breast halves; 1 cup canned or frozen artichoke hearts, halved; 1/2 cup chopped pancetta or bacon; 1/2 thinly sliced shallots; 1/2 tablespoon chopped garlic; 1 cup chicken broth; 2 tablespoons all-purpose flour; 1/2 cup dry white wine; 1 tablespoon chopped fresh parsley; 1 tablespoon chopped fresh rosemary; 1 teaspoon lemon zest; 2 tablespoons fresh lemon juice, divided; 2 tablespoons oil, divided; salt and pepper to taste