Mathilde d'Auvergne

Mathilde d'Auvergne (c. 1318 – 24 October 1399) was a daughter of Count Robert VII of Auvergne and Boulogne. In 1334 she married Count Amadeus III of Geneva and bore him ten children, five sons and five daughters. The five sons succeeded to Geneva in turn, and the youngest, Robert, became the Avignon antipope Clement VII.

As pope he left the government of the county to his mother and named his nephew Humbert of Villars as heir. When Robert died in 1394 she and her daughters contested Humbert's succession, claiming usufruct of the county in a 1395 suit.

She made her will at Rumilly in 1396 and died in 1399. Her surviving daughters Blanche and Catherine inherited her goods and rights, and Blanche took the title of countess of Geneva.