William XII, Count of Auvergne
William XII of Auvergne (1300–1332) was Count of Auvergne and Count of Boulogne between 1325 and 1332.
He was the eldest son of Robert VII of Auvergne and Blanche of Bourbon, daughter of Robert, Count of Clermont.
He married Margaret of Évreux (1307–1350), daughter of Louis, Count of Évreux and Margaret of Artois.
William died young and had only one daughter :