Erard I, Count of Brienne

Érard I, Count of Brienne (c. 1060–1114) was Count of Brienne at the end of the 11th century. He was the son of Walter I of Brienne, count of Brienne, and his wife Eustachie of Tonnerre (Eustachie de Tonnerre [fr]).[1] When Érard inherited the county of Brienne, he was invested by Theobald III, Count of Blois.[2]

Érard co-founded an abbey at Boulancourt, and later founded a monastery at Beaulieu.[3] In 1114, Érard followed his liege lord, Hugh, Count of Champagne, to the Holy Land.[4][5]

Marriage and issue

In 1110 he married Alix of Roucy-Ramerupt,[1] daughter of André de Montdidier-Roucy, seigneur de Ramerupt and son of Hilduin IV, Count of Montdidier. They had:

• Walter II of Brienne, count of Brienne and lord of Ramerupt.[1] Father of Érard II.
• Guy of Brienne[1]
• Félicité of Brienne (Félicité de Brienne [fr]), who married Simon I of Broyes (Simon Ier de Broyes [fr] ), then in 1142 Geoffroy III, sire de Joinville (Geoffroy III de Joinville [fr] ).[1]

References

1. Perry 2018, Table 1: The early Briennes, c.950-1191.
2. Perry 2018, p. 21.
3. Perry 2018, p. 25.
4. Perry 2013, p. 24.
5. Perry 2018, p. 22.

Sources

• Perry, Guy (2013). John of Brienne: King of Jerusalem, Emperor of Constantinople, c.1175–1237. Cambridge University Press.24
• Perry, Guy (2018). The Briennes: The Rise and Fall of a Champenois Dynasty in the Age of the Crusades, c. 950-1356. Cambridge University Press.