Érard II, Count of Brienne
Érard II of Brienne (died 1191) was count of Brienne from 1161 to 1191, and a French general during the Third Crusade, most notably at the Siege of Acre. He was the son of Gautier II, count of Brienne, and Adèle of Baudemont, daughter of Andrew, lord of Baudemont and Agnes of Braine. His paternal grandparents were Erard I, Count of Brienne and Alix de Roucy. During this siege he saw his brother André of Brienne die on 4 October 1189 before being killed himself on 8 February 1191. Erard II's nephew was Erard of Brienne-Ramerupt.
- Gautier III of Brienne (died 1205) count of Brienne and claimant to the throne of Sicily.
- William of Brienne (died 1199) lord of Pacy-sur-Armançon, married Eustachie of Courtenay, daughter of Pierre de France and of Elisabeth of Courtenay.
- John of Brienne (1170–1237), king of Jerusalem (1210–1225), then emperor of Constantinople (1231–1237).
- Ida of Brienne who married Ernoul of Reynel lord of Pierrefitte.
- Robert Lawrence Nicholson, Joscelyn III and the Fall of the Crusader States: 1134-1199, (Brill, 1973), 184.
- Jochen Schenk, Templar Families: Landowning Families and the Order of the Temple in France, c.1120-1307, (Cambridge University Press, 2012), 294.
- Guy Perry, John of Brienne: King of Jerusalem, Emperor of Constantinople, c.1175-1237, (Cambridge University Press, 2013), 16.
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