Erard I, Count of Brienne
Erard I, Count of Brienne 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 :
