Marie, Countess of Eu explained

Marie
Reign:1246–1260
Spouse:Alphonso of Brienne
Issue:John I
Father:Raoul II of Lusignan
House:House of Lusignan
Mother:Yolande de Dreux
Birth Date:1223 Eu France
Death Date:1 October 1260 (age 37)
Death Place:Poitou

Marie of Lusignan or Marie I de Lusignan (born 1223 in Eu France died in Poitou, 1 October 1260; buried at the Abbey of Foucarmont), was the only child of Raoul II of Lusignan and his second wife, Yolande de Dreux. She became Dame d'Exoudun, Countess of Eu on the death of her father in 1246.

She was married around 1245 to Alphonso of Brienne who became Count of Eu by this marriage.

Marie and Alphonso had at least two children:

Sources