Alfonso of Brienne, called Alphonse d'Acre (c. 1220 – 14 September 1270), was the son of

John of Brienne John of Brienne ( 1170 – 19–23 March 1237), also known as John I, was the king of Jerusalem from 1210 to 1225 and Latin emperor of Constantinople from 1229 to 1237. He was the youngest son of Erard II of Brienne, a wealthy nobleman in Cham ...

and

Berengaria of León Berengaria of León (1204 – 12 April 1237) was the third wife but only empress consort of John of Brienne, Latin Emperor of Constantinople. She was a daughter of Alfonso IX of León and Berengaria of Castile. She was a younger sister of Ferdin ...

, born in

Acre The acre ( ) is a Unit of measurement, unit of land area used in the Imperial units, British imperial and the United States customary units#Area, United States customary systems. It is traditionally defined as the area of one Chain (unit), ch ...

. Alfonso took part in the

Seventh Crusade The Seventh Crusade (1248–1254) was the first of the two Crusades led by Louis IX of France. Also known as the Crusade of Louis IX to the Holy Land, it aimed to reclaim the Holy Land by attacking Egypt, the main seat of Muslim power in the Nea ...

(1248) as a squire. By his marriage (before 1250) to Marie, Countess of Eu he became

Count of Eu This is a list of the counts of Eu, Seine-Maritime, Eu, a French county in the Middle Ages (Eu, Seine-Maritime, Eu is in the department of Seine-Maritime, in the extreme north of Normandy), disputed between Kingdom of France, France and Kingdom ...

. He was also

Grand Chamberlain of France The Grand Chamberlain of France () was one of the Great Officers of the Crown of France, a member of the ''Maison du Roi'' ("King's Household"), and one of the Great Offices of the Maison du Roi during the Ancien Régime. It is similar in name ...

. He died on 14 September 1270 in

Tunis Tunis (, ') is the capital city, capital and largest city of Tunisia. The greater metropolitan area of Tunis, often referred to as "Grand Tunis", has about 2,700,000 inhabitants. , it is the third-largest city in the Maghreb region (after Casabl ...

on the

Eighth Crusade The Eighth Crusade was the second Crusade launched by Louis IX of France, this one against the Hafsid dynasty in Tunisia in 1270. It is also known as the Crusade of Louis IX Against Tunis or the Second Crusade of Louis. The Crusade did not see an ...

in the same epidemic that claimed King

Louis IX Louis IX (25 April 1214 – 25 August 1270), also known as Saint Louis, was King of France from 1226 until his death in 1270. He is widely recognized as the most distinguished of the Direct Capetians. Following the death of his father, Louis ...

. He had at least two children by Marie: *

John I of Brienne, Count of Eu John I of Brienne (born 1246 died 12 June 1294) was the son of Alphonso of Brienne and Marie de Lusigan. His mother was the heiress of Eu, Seine-Maritime, and he succeeded his father as Count of Eu in 1260. (both The Chronique des comtes d’E ...

*Blanche (d. 1338), Abbess of Maubuisson

Ancestry

References

Sources

* * {{DEFAULTSORT:Alphonso Of Brienne 1220s births 1270 deaths People from Acre, Israel Counts of Eu Christians of the Seventh Crusade Christians of the Eighth Crusade House of Brienne Burials at the Basilica of Saint-Denis Sons of emperors Jure uxoris counts