People/Latin Crusaders and Crusader states

c. 1170–1237 · King of Jerusalem and Latin emperor of Constantinople

John of Brienne

Experienced Latin ruler who led the armies of the Kingdom of Jerusalem during the Fifth Crusade.

No verified depiction added

BIOGRAPHICAL DOSSIER

Life and historical role

01

Life and political setting

John came from the Brienne family of Champagne. By marrying Queen Maria he became king of Jerusalem in 1210, and their daughter Isabella carried the dynastic claim forward. His long career later included conflict with Frederick II and service as regent-emperor in Latin Constantinople.

02

Role in the Crusades

John joined the Fifth Crusade launched in 1217 and became one of the principal political leaders of the operation against Damietta. He favoured al-Kamil's offers to exchange Jerusalem for withdrawal from Egypt, but the papal legate Pelagius refused them. After the defeat near Mansurah in 1221 John helped negotiate the evacuation agreement.

Method note

Biographical information is linked to the sources shown on the page and to the connected event records. Disputed dates are given as approximate, gaps are not filled by conjecture, and later literary or visual depictions are not treated as contemporary portraits.

CONTEXTUAL READING

Related cases

September–November 1217 · Acre and Galilee

Fifth Crusade armies at Acre

The first armies of the Fifth Crusade, led by King Andrew II of Hungary and Duke Leopold VI of Austria, reached Acre in autumn 1217. Campaigns in Galilee and the Jordan valley and an attack on Mount Tabor produced no decisive result; Andrew went home in early 1218 and the target shifted to Egypt.

Open record →May 1218 – 5 November 1219 · Damietta

Capture of Damietta

The army of the Fifth Crusade besieged Damietta in the Nile delta in May 1218. After the chain tower was taken in August 1218 the siege lasted a year and a half; weakened by hunger and disease, the city was taken on 5 November 1219.

Open record →March 1223 · Ferentino

Meeting of Ferentino and the plan for the Sixth Crusade

In March 1223 Pope Honorius III, Emperor Frederick II, King John of Brienne of Jerusalem and the Teutonic master Hermann von Salza met at Ferentino. It was agreed that Frederick would marry Isabella, heiress to the throne of Jerusalem, and the emperor's crusade was postponed to 1225.

Open record →