Agnes I, Countess of Nevers
Countess of Nevers, Auxerre and Tonnerre / From Wikipedia, the free encyclopedia
Agnes I (1170 – in 1192 or 1193 in Mailly), Countess of Nevers, Auxerre and Tonnerre (1185-1192), daughter of Guy, Count of Nevers, Auxerre and Tonnerre, and Mathilde de Burgundy, dame of Montpensier.[1]