William VII of Auvergne

William VII, called the Young (c. 1130–1169), became the legitimate count of Auvergne when his father Robert III died on crusade in 1147. He married Marquise d'Albon of Viennois, whose family's Dauphin title passed to his heirs.

After a long feud his uncle William VIII the Old seized the county around 1155, but William retained part of it, including Montferrand. Louis VII once imprisoned both rival counts, who were released only in 1164. William died in 1169, and his son Robert IV founded the Dauphin line of Auvergne.