Alfonso of Brienne, called Alphonse d'Acre (c. 1228 – 14 September 1270), was the son of

John of Brienne John of Brienne ( 1170 – 19–23 March 1237), also known as John I, was 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 Champag ...

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 Ferdinan ...

, born in

Acre The acre is a unit of land area used in the imperial Imperial is that which relates to an empire, emperor, or imperialism. Imperial or The Imperial may also refer to: Places United States * Imperial, California * Imperial, Missouri * Imp ...

. Alfonso took part in the Seventh Crusade (1248) as a squire. By his marriage (before 1250) to Marie, Countess of Eu he became

Count of Eu Count (feminine: countess) is a historical title of nobility in certain European countries, varying in relative status, generally of middling rank in the hierarchy of nobility. Pine, L. G. ''Titles: How the King Became His Majesty''. New York: ...

. He was also

Grand Chamberlain of France The Grand Chamberlain of France (french: Grand Chambellan de 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 Anci ...

. He died on 14 September 1270 in

Tunis ''Tounsi'' french: Tunisois , population_note = , population_urban = , population_metro = 2658816 , population_density_km2 = , timezone1 = CET , utc_offset1 ...

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 ...

in the same epidemic that claimed King

Louis IX Louis IX (25 April 1214 – 25 August 1270), commonly known as Saint Louis or Louis the Saint, was King of France from 1226 to 1270, and the most illustrious of the Direct Capetians. He was crowned in Reims at the age of 12, following the d ...

. He had at least two children by Marie: *

John I of Brienne, Count of Eu John I of Brienne (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 1270. He married Beatrice, the daughter of Guy III, ...

*Blanche (d. bef. 1338), Abbess of Maubuisson

Ancestry

References

Sources

* * {{DEFAULTSORT:Alphonso Of Brienne 1228 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