“Crusader records tell us that King Louis IX of France was on crusade in the Holy Land at the time of the attack on Sidon in 1253,”Seventh Crusade
Eighth Crusade
In a parliament held at Paris, 24 March 1267, Louis and his three sons "took the cross." On hearing the reports of the missionaries, Louis resolved to land at Tunis, and he ordered his younger brother, Charles of Anjou, to join him there. The crusaders, among whom was the English prince Edward Longshanks, landed at Carthage 17 July 1270, but disease broke out in the camp. Many died of dysentery, and on 25 August, Louis himself died.
St. Louis Cathedral, Carthage--named for King Louis IX
This is no longer a house of worship but is used as an auditorium.