William IX of Auvergne

William IX of Auvergne was count of Auvergne.

Life

He was the son of Robert IV of Auvergne and Mahaut of Burgundy.
The only source about him is Alberic of Trois-Fontaines's chronicle, which states that he was the count of Auvergne and the brother of Guy II of Auvergne and Robert of Auvergne.
Since his brother is first recorded as count in 1198, it is assumed that he died or abdicated around that time.