William V, Marquis of Montferrat

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William V
Marquis of Montferrat
PredecessorRainier, Marquis of Montferrat
SuccessorConrad of Montferrat
Tyre, Lebanon
Noble familyAleramici
Spouse(s)Judith of Babenberg
IssueWilliam of Montferrat, Count of Jaffa and Ascalon
Conrad of Montferrat
Boniface of Montferrat
Frederick of Montferrat, Bishop of Alba
Renier of Montferrat
Agnes, Countess of Modigliana
Azalaïs, Marchioness of Saluzzo
FatherRenier I of Montferrat
MotherGisela of Burgundy

William V of Montferrat (occ./piem. Guilhem, it. Guglielmo) (c. 1115 – 1191) also known regnally as William III of Montferrat[1] while also referred to as William the Old or William the Elder,[1] in order to distinguish him from his eldest son, William Longsword, was seventh Marquis of Montferrat from c. 1136 to his death in 1191. William was the only son of Marquis Renier I and his wife Gisela,[2] a daughter of William I, Count of Burgundy and widow of Count Humbert II of Savoy. It seems likely, given that he was still fit enough to participate in battle in 1187, that William was one of his parents' youngest children.

He was described by Acerbo Morena as of medium height and compact build, with a round, somewhat ruddy face and hair so fair as to be almost white. He was eloquent, intelligent and good-humoured, generous but not extravagant. Dynastically, he was extremely well-connected: a nephew of Pope Callixtus II, a half-brother of Amadeus III of Savoy whose daughter, Matilda, Queen of Portugal was married to Afonso I, King of Portugal, a brother-in-law of Louis VI of France (through his half-sister Adelasia of Moriana), a cousin of Alfonso VII of Castile, and his maternal great-grandmother was Alice of Normandy which made him a distant relative to the Norman monarchs of England.

Dynastic marriage[edit]

William married Judith or Ita von Babenberg, daughter of Leopold III of Austria and Agnes of Germany, sometime before March 28, 1133.[2] Judith was probably about 15 at the time. None of their surviving children seem to have been born before 1140 (there may have been older ones who died in infancy), and the youngest son was born in 1162. She died after 1168. They had five sons, four of whom became prominent in the affairs of the Kingdom of Jerusalem and of Byzantium:

and three daughters:

The vida of the troubadour Raimbaut de Vaqueiras claims that there was another daughter, Beatrice, who m. Henry I del Carretto, Marquis of Savona, and that she is the Bel Cavalher (Fair Knight) of Vaqueiras's songs. However, the lyrics of Vaqueiras's songs (as opposed to the later vida) describe Beatrice as Boniface's daughter, and thus William's granddaughter.

Otto of Tonengo (d. 1251), who became Bishop of Porto, and Cardinal in 1227, has sometimes been identified as a son of William V, and confused with Frederick. However, his dates make it more likely that he was a son of William VI of Montferrat, whether legitimate or not is uncertain.

William and Judith's powerful dynastic connections created difficulties in finding suitable wives for his sons, and too many potential spouses were related within prohibited degrees. In 1167, he unsuccessfully tried to negotiate marriages for his eldest sons to daughters of Henry II, King of England - but the girls were very young at the time and were related through Judith's descent from William V of Aquitaine. He then applied for sisters of William I, King of Scotland, who were not related, but were already married.

Alliances with the Western and Eastern Empires[edit]

William took part in the Second Crusade, alongside his half-brother Amadeus of Savoy (who died during the campaign), his nephew Louis VII of France, his brother-in-law Count Guido of Biandrate, and his wife's German and Austrian relatives.

As supporters of the imperial party (later known as the Ghibellines), he and his sons fought with the Emperor Frederick Barbarossa (Judith's nephew) in his lengthy struggle against the Lombard League. Following Barbarossa's capitulation with the Peace of Venice in 1177, William was left to deal with the rebellious towns in the area alone. Meanwhile, the Byzantine emperor Manuel I Komnenos sought support for his own politics in Italy.

William broke with Barbarossa and formed an alliance with Manuel. His eldest surviving son, Conrad, was taken prisoner by Barbarossa's Chancellor, Archbishop Christian of Mainz, but then captured the chancellor in battle at Camerino. In 1179 Manuel suggested a marriage between his daughter Maria, second in line to the throne, and one of William's sons. As Conrad and Boniface were already married, the youngest son, Renier, was married off to the princess, who was ten years his senior. Renier and Maria were later killed during the usurpation of Andronikos, and the family rebuilt ties with Barbarossa.

Crusade in Outremer[edit]

In 1183, with the accession of his grandson Baldwin V, a minor, as co-King of Jerusalem, William, then probably in his late sixties, left the government of Montferrat to Conrad and Boniface, and returned to the east. He was granted the castle of St. Elias (present-day Taybeh). He fought in the Battle of Hattin in 1187, where he was captured by Saladin's forces. In the meantime, his second son, Conrad, had arrived at Tyre from Constantinople. Conrad was given the command of the defences. During the siege of Tyre in November that year, he is said to have refused to surrender as much as a stone of its walls to liberate his father, even threatening to shoot him with a crossbow himself when Saladin had him presented as a hostage. Eventually, Saladin withdrew his army from Tyre. In 1188, William was released unharmed at Tortosa, and seems to have ended his days in Tyre, with his son. He probably died in the summer of 1191: Conrad last describes himself as "marchionis Montisferrati filius" in a charter of May that year.

Popular culture[edit]

William de Montferrat is an assassination target in the video game Assassin's Creed (2007).[4] In the game, de Montferrat is Liege Lord of Acre under King Richard and is portrayed as middle aged, rather than in his early eighties.[5]


  1. ^ a b Beihammer, Parani & Schabel 2008, p. 183.
  2. ^ a b c d e Hamilton 2000, p. xxi.
  3. ^ Marrocchi, Mario (2004). "Guidi, Guido (Guido Guerra III)". Dizionario Biografico degli Italiani (in Italian) (61).
  4. ^ McWhertor, Michael (15 October 2009). "Real-Life Assassin's Creed Weapons Seem Like A Good Idea". Kotaku. Australia: Allure Media. Retrieved 30 April 2018.
  5. ^ Nichols, Derek (27 September 2013). "History Behind the Game – Assassin's Creed Characters". VentureBeat. Retrieved 30 April 2018.


Preceded by Marquis of Montferrat
c. 1136–1191
Succeeded by