Preheat oven to 400 degrees. In a small bowl, mix pimenton with 2 teaspoons salt, 1/4 teaspoon pepper, and 1 tablespoon oil. Rub mixture all over chicken and let stand while you prepare remaining ingredients (or cover and refrigerate up to 2 days).

Combine broth, rosemary, and 1/2 teaspoon salt in a small pot; crumble saffron into mixture. Bring to a simmer over medium heat, then reduce heat to lowest setting and cover to keep warm.

Heat 3 tablespoons oil in a 15-inch paella pan over medium-high. Season chicken with salt and pepper; cook, flipping once and occasionally turning pan to ensure even cooking, until golden brown, 8 to 10 minutes. Transfer to a plate. Drain fat from pan and wipe out any blackened bits.

Return pan to medium-high heat and swirl in remaining 3 tablespoons oil. Add onion, bell pepper, garlic, and a large pinch of salt; cook, stirring often, until softened, 4 to 5 minutes. Add rice and cook, stirring, until grains are well-toasted and begin to pop, 1 to 2 minutes. Stir in tomato paste and cook 1 minute. Add tomatoes and wine; cook until liquid has evaporated, about 30 seconds. Discard rosemary from reserved stock mixture and adjust seasoning as desired; add to pan. Bring to a boil and cook, without stirring, until liquid has reduced slightly, about 5 minutes. Add lima beans, broad beans, and artichoke hearts; nestle chicken into rice, skin-side up.

Transfer to oven and bake until liquid has evaporated and rice is cooked through (top may look underdone, check just beneath for doneness), 15 to 20 minutes. Remove from oven and let stand, covered with foil, 5 minutes. Serve with lemon wedges.

Preheat oven to 400 degrees. In a small bowl, mix pimenton with 2 teaspoons salt, 1/4 teaspoon pepper, and 1 tablespoon oil. Rub mixture all over chicken and let stand while you prepare remaining ingredients (or cover and refrigerate up to 2 days).

Combine broth, rosemary, and 1/2 teaspoon salt in a small pot; crumble saffron into mixture. Bring to a simmer over medium heat, then reduce heat to lowest setting and cover to keep warm.

Heat 3 tablespoons oil in a 15-inch paella pan over medium-high. Season chicken with salt and pepper; cook, flipping once and occasionally turning pan to ensure even cooking, until golden brown, 8 to 10 minutes. Transfer to a plate. Drain fat from pan and wipe out any blackened bits.

Return pan to medium-high heat and swirl in remaining 3 tablespoons oil. Add onion, bell pepper, garlic, and a large pinch of salt; cook, stirring often, until softened, 4 to 5 minutes. Add rice and cook, stirring, until grains are well-toasted and begin to pop, 1 to 2 minutes. Stir in tomato paste and cook 1 minute. Add tomatoes and wine; cook until liquid has evaporated, about 30 seconds. Discard rosemary from reserved stock mixture and adjust seasoning as desired; add to pan. Bring to a boil and cook, without stirring, until liquid has reduced slightly, about 5 minutes. Add lima beans, broad beans, and artichoke hearts; nestle chicken into rice, skin-side up.

Transfer to oven and bake until liquid has evaporated and rice is cooked through (top may look underdone, check just beneath for doneness), 15 to 20 minutes. Remove from oven and let stand, covered with foil, 5 minutes. Serve with lemon wedges.