Individual Details

Birth

Since her birth, Marie was the legitimate heiress of the Lordship of Montpellier, because a clausule of the marriage contract of her parents established that the firstborn child, boy or girl, would succeed in Montpellier on William VIII's death.
In April 1187, William VIII repudiated Eudokia Komnene and married with certain Agnes, a relative of the Kings of Aragon. She bore him eight children, six sons and two daughters. Although Eudokia entered in a convent in Aniane as a Benedictine nun, William VIII's second marriage was declared invalid and all the children born from this union declared illegitimate, so Marie remained as the undisputed heiress of Montpellier.

Marriage

From her marriage with Peter II, Marie gave birth two children: Infanta Sancha (born in 1205, died aged one) and Infante James, the future King James I the Conqueror (born on 1 February 1208). Peter II immediately attempted to divorce her, hoping both to marry Maria of Montferrat, Queen of Jerusalem, and to claim Montpellier for himself. Marie's last years were spent in combating these political and matrimonial manoeuvres. Pope Innocent III finally decided in her favour, refusing to permit the divorce. Marie died in Rome (21 January 1213) in her way back to Aragon, and Peter II a few months later (14 September 1213) at the Battle of Muret. Marie and Peter II's only surviving child, James I, inherited Aragon and Montpellier.