Marie de Lusignan (?-1260), suo jure Countess of Eu, and dame de Civray, de Chizé et de Bénais.

MedLands

• http://fmg.ac/Projects/MedLands/NORMAN%20NOBILITY.htm#MarieLusignanCtssEudied1260

MARIE de Lusignan (-Melle, Poitou 1 Oct 1260, bur Abbaye de Foucarmont). The Chronique des comtes d´Eu, written in 1390, names "Marie" as the daughter of "Raoul de Yssouldun" and his second wife "la fille au duc de Bretaigne...Aleonor", adding that she married "messire Alphons...filz au roy Jehan de Hierusalem"[2033]. She succeeded her father in 1246 as Ctss d'Eu, dame de Civray, de Chizé et de Bénais. The necrology of Ulterioris Portus monastery records the death "1 Oct" of "Maria comitissa Augi"[2034]. m (before 1250) ALPHONSE de Brienne dit d'Acre, son of JEAN de Brienne King of Jerusalem Emperor of Constantinople & his third wife Infanta doña Berenguela de Castilla (-Tunis 25 Aug 1270, bur Saint-Denis). He succeeded as Comte d'Eu, de iure uxoris.

Wikipedia

Marie de Lusignan, Countess d'Eu

• http://en.wikipedia.org/wiki/Marie_of_Lusignan,_Countess_d%27Eu

Marie de Lusignan or Marie I de Lusignan (c. 1223 – Melle, Poitou, October 1, 1260, buried at the Abbey of Foucarmont), was the only child and daughter of Raoul II of Lusignan and first wife Jeanne de Bourgogne. She became Dame d'Issoudun, Countess of Eu and of Guinness in 1250.

Married c. 1249/before 1250 Alphonse d'Acre de Brienne (c. 1225 – of the plague, Carthage or Tunis, September, 1270, buried at the Abbey of St. Denis), Count of Eu by marriage, son of Jean de Brienne and third wife Infanta Berengaria of Castile, and had issue.