Who was the French monarch who fought in the Crusades?

Louis IX, commonly known as Saint Louis, was the French monarch who fought in the Crusades. He was born on April 25, 1214, and became King of France at the age of 12. Louis IX was known for his piety, and during his reign, he was recognized for his devotion to Christianity.

Louis IX took part in two Crusades during his lifetime. The first was in 1248 when he led the Seventh Crusade to the Holy Land to help defend Jerusalem against the Muslims. The Crusaders captured Damietta in Egypt but were ultimately defeated and Louis IX was captured and held for ransom. Despite his capture, he refused to abandon his men and eventually negotiated his release by agreeing to pay a large ransom.

The second Crusade he participated in was in 1270 when he led the Eighth Crusade to North Africa to attack the city of Tunis. However, the Crusade was cut short due to an outbreak of disease that led to Louis IX's death.