Erard I, Count of Brienne

Erard I, Count of Brienne (1060 – 1114) was Count of Brienne at the end of the 11th century. He was the son of Gautier I of Brienne, count of Brienne, and his wife Eustachie of Tonnerre.

In 1097 he fought in the First Crusade.

In 1110 he married Alix of Roucy-Ramerupt, daughter of André de Montdidier-Roucy, seigneur de Ramerupt. They had 3 children :
 * Gautier II of Brienne, count of Brienne and lord of Ramerupt.
 * Guy of Brienne
 * Félicité of Brienne, who married Simon I of Broyes then in 1142 Geoffroy III, sire de Joinville.