Overview
Marie of Brienne (c. 1224–1275) was Latin Empress as the wife of Baldwin II of Courtenay. She served as regent during the absence of Baldwin II twice: in 1237–1239, and in 1243–1257.
Family
She was a daughter of John of Brienne and his third wife Berenguela of Leon. Marie was a younger, paternal half-sister of Yolande of Jerusalem. She was also a sister of Alphonso of Brienne.
Marriage
From Wikipedia (CC BY-SA 4.0).