Maria of Montferrat

[2] The surviving children of this marriage, Queen Isabella's final, were two daughters, Sibylla and Melisende, and so Maria remained her mother's heir presumptive.

[8] Queen Isabella I died shortly after King Aimery in April 1205, two months after the death of their infant son.

[9] Five daughters survived Isabella and the eldest of them, 13-year-old Maria, succeeded to the throne of Jerusalem, while the crown of Cyprus passed to Maria's stepbrother Hugh I. John of Ibelin was made regent; he was the half-brother of Isabella, who may have nominated him on her deathbed, and held the Lordship of Beirut, the richest fief in the Kingdom of Jerusalem.

[12] King Philip II of France was visited by the bishop of Acre, Florent, and the lord of Caesarea, Aymar de Lairon, who asked him to find a capable candidate.

The task proved difficult, and only in 1210 the king declared the search successful; an impoverished and aged knight, John of Brienne, had accepted.

[14] Maria's line became extinct in 1268 with the death of her great-grandson Conrad III, and the kingdom passed to the descendants of her half-sister Alice.