Marie, Countess of Eu
Marie of Lusignan or Marie I de Lusignan, was the only child of Raoul II of Lusignan and his second wife, Yolande de Dreux. She became Dame d'Issoudun, Countess of Eu and of Guines in 1250.
She was married around 1249 to Alphonso of Brienne. Alphonse was Count of Eu by marriage.
Marie and Alphonso had at least two children:
