Matilda I, Countess of Nevers

Matilda I of Nevers (1188–1257) was ruling countess of Nevers, Auxerre and Tonnerre. Only daughter of Peter II of Courtenay and Agnes I of Nevers, she married Hervé IV of Donzy in 1199, after he captured her father in war; the peace ceded him Nevers.

After her father's death, Matilda inherited Auxerre and Tonnerre; Hervé returned from the Fifth Crusade to take control of the counties. Widowed in 1222, she married Guigues IV of Forez in 1226.

In 1223 she granted Auxerre a charter of liberties, and in 1235 founded a Cistercian nunnery. She died at Coulanges-sur-Yonne, succeeded by her great-granddaughter Matilda II.