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.
- Occupation
- troubadour, composer, feudatory
- Citizenship
- France
- Born
- 1220
- Died
- 1288
