Erard I, Count of Brienne

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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 and son of Hilduin IV, Count of Montdidier. They had 3 children:

  • Gautier II of Brienne, count of Brienne and lord of Ramerupt. Father of Erard II.
  • Guy of Brienne
  • Félicité of Brienne, who married Simon I of Broyes, then in 1142 Geoffroy III, sire de Joinville.