At first, Cantal was divided into four arrondissements—Aurillac, Mauriac, Saint-Flour and Murat (later merged with Saint-Flour).
It was divided in four districts: Aurillac, Mauriac, Murat and Saint-Flour; its capital in Saint-Flour, alternating with Aurillac.
It was divided in four districts: Aurillac, Mauriac, Murat and Saint-Flour; its capital in Saint-Flour, alternating with Aurillac.
Make this simpler: At first, Cantal was divided into four arrondissements—Aurillac, Mauriac, Saint-Flour and Murat (later merged with Saint-Flour). Output: