L'Isle-Jourdain (Occitan : Illa or Iscla) was a lordship and then county near Gers in Gascony during the High Middle Ages. It took its name, Jourdain, from its crusading baron who was baptised in the River Jordan on the First Crusade. Its last count sold the fief to the King of France.
Alfonso Jordan, also spelled Alfons Jordan or Alphonse Jourdain (1103–1148), was the Count of Tripoli (1105–09), Count of Rouergue (1109–48) and Count of Toulouse, Margrave of Provence and Duke of Narbonne (1112–48).
The count of Toulouse was the ruler of Toulouse during the 8th to 13th centuries. Originating as vassals of the Frankish kings, the hereditary counts ruled the city of Toulouse and its surrounding county from the late 9th century until 1270. The counts and other family members were also at various times counts of Quercy, Rouergue, Albi, and Nîmes, and sometimes margraves of Septimania and Provence. Count Raymond IV founded the Crusader state of Tripoli, and his descendants were also counts there. They reached the zenith of their power during the 11th and 12th centuries, but after the Albigensian Crusade the county fell to the kingdom of France, nominally in 1229 and de facto in 1271.
The House of Ibelin was a noble family in the Crusader Kingdom of Jerusalem in the 12th century. They rose from humble beginnings to become one of the most important families in the kingdom, holding various high offices and with extensive holdings in the Holy Land and Cyprus. The family disappeared after the fall of the Kingdom of Cyprus in the 15th century.
Jordan IV was the Lord of L'Isle-Jourdain and a vassal of Alfonso of Poitou. He was a crusader during the Italian crusades of Guelph against Ghibelline. His son-in-law was Aimery IV of Narbonne, who led the armies of Florence and Anjou in the Battle of Campaldino in 1289 and his brother was the provost of Toulouse.
BernardIV Jordan was the Lord of L'Isle-Jourdain from 1303 or 1304 to his death. He was the son and successor of Jordan IV and his first wife Faidiva. Bernard Jordan maintained an alliance with Gaston I of Foix.
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The former Catholic Diocese of Lectoure was in south-west France. It existed from the fourth century until the time of the French Revolution, when it was suppressed under the Concordat of 1801. Its see was Lectoure Cathedral. Lectoure is now a commune of Gers.
Bertrand I of L'Isle-Jourdain was the Count of L'Isle-Jourdain from 1340 to his death. He was the son of Bernard IV Jordan and Marguerite de Foix.
The Seneschal of Périgord was an officer carrying out and managing the domestic affairs of the lord of the County of Périgord. During the course of the twelfth century, the seneschalship also became an office of military command.
Bertrand of L'Isle-Jourdain may refer to: