John of Brienne King of Jerusalem

✓ John (Jean) of Brienne, King of Jerusalem (1210-1225, by marriage to Queen Marie) and Latin Emperor of Constantinople (1229-1237) (b. [1170/75], d. 27 Mar 1237), son of Erard II, Count of Brienne, and Agnes de Montbeliard. m. (1) Marie, Queen of Jerusalem; (2) Rita of Armenia; (3) Toledo 1224 Berenguela of Leon, mother of Jean d'Acre. His parents Erard II of Brienne x Agnes de Montbeliard wired 20 Oct 2026 (rings into Hilduin IV de Ramerupt and William I of Burgundy). Source: Medieval Lands (fmg.ac, Cawley), 'Jerusalem' (Brienne). [DIRECT ANCESTOR OF THE COMPILER: flag added 20 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]