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'Boniface of Montferrat' (; , ''Vonifatios Momferratikos''), (c. 1150 – 1207) was Marquess of Montferrat and the leader of the Fourth Crusade. He was the third son of William V of Montferrat and Judith of Babenberg, born after his father's return from the Second Crusade. He was a younger brother of William 'Longsword', Count of Jaffa and Ascalon, and of Conrad I of Jerusalem.

Contents

Boniface in Italy

The Fourth Crusade

Family and death

Notes

Sources

Bibliography

Boniface in Italy

Boniface's youthful exploits in the late 1170s are recalled in the famous ''Epic Letter'', ''"Valen marques, senher de Monferrat"'', by his good friend and court troubadour Raimbaut de Vaqueiras. These included the rescue of the heiress Jacopina of Ventimiglia from her uncle Count Otto, who was intending to deprive her of her inheritance and send her to Sardinia. Boniface arranged a marriage for her. When Albert of Malaspina (husband of one of Boniface's sisters) abducted Saldina de Mar, a daughter of a prominent Genoese family, Boniface rescued her and restored her to her lover, Ponset d'Aguilar. Like the rest of the family, he also supported his cousin Frederick I Barbarossa in their wars against the independent city communes of the Lombard League.
Boniface's eldest brother, William, had died in 1177, soon after marrying Princess Sibylla, the heiress to the Kingdom of Jerusalem. In 1179, the Byzantine emperor Manuel I Comnenus offered his daughter Maria the Porphyrogenita as a bride to one of the sons of William V. Since Boniface, like his older brother Conrad, was already married, and Frederick was a priest, the youngest brother, Renier, married her instead, only to be murdered along with her during the usurpation of Andronicus.
In 1183, Boniface's nephew Baldwin V was crowned co-king of Jerusalem. William V went out to the Latin Kingdom to support his grandson, leaving Conrad and Boniface in charge of Montferrat. However, in 1187, Conrad also left for the East: Isaac II Angelus had offered his sister Theodora to Boniface as a wife, to renew the family's Byzantine alliance, but Boniface had just married for the second time, while Conrad was a recent widower.
In 1189, Boniface joined the council of regency for Thomas I of Savoy, son of his cousin Humbert III, until the boy came of age about two years later. In 1191, after the new Emperor Henry VI granted him the county of Incisa, a fifteen-year war broke out against the neighbouring communes of Asti and Alessandria. Boniface joined the Cremona League, while the two cities joined the League of Milan. Boniface defeated the cities at Montiglio in June that year, but the war as a whole went badly for the dynasty's interests. At Quarto, he and Vaqueiras saved his brother-in-law Alberto of Malaspina when he was unhorsed. The first phase of the war ended with a truce in April 1193. By now, Boniface was Marquess of Montferrat, following the deaths of his father in 1191 and of Conrad, the newly elected King of Jerusalem, in 1192. (No claim to Montferrat ever seems to have been made on behalf of Conrad's posthumous daughter Maria.)
In June 1194, Boniface was appointed one of the leaders of Henry VI's expedition to Sicily. At Messina, amid the fighting between the Genoese and Pisan fleets, Vaqueiras protected his lord with his own shield - an act which helped the troubador win a knighthood from Boniface that year, after the campaign's successful conclusion: Henry's coronation in Palermo. In October 1197, the truce with Asti ended. Boniface made an alliance with Acqui in June 1198. There were numerous skirmishes and raids, including at Ricaldone and Caranzano, but by 1199 it was clear the war was lost, and Boniface entered into negotiations.
Throughout the 1180s and 1190s, despite the wars, Boniface had nevertheless presided over one of the most prestigious courts of chivalric culture and troubador song. In the 12th century, the Piemontèis language (which in the present day reflects more French and Italian influences) was virtually indistinguishable from the Occitan of Southern France and Catalonia. Besides Vaqueiras, visitors included Peire Vidal, Gaucelm Faidit, and Arnaut de Mareuil. Boniface's patronage was celebrated widely. To Gaucelm, he was ''Mon Thesaur'' (''My Treasure''). Curiously, Vaqueiras sometimes addressed him as ''N'Engles'' (''Lord Englishman''), but the in-joke is never explained. His sister Azalaïs, Marchioness of Saluzzo, also shared this interest and was mentioned by Vidal.

The Fourth Crusade

When the original leader of the Fourth Crusade, Count Theobald III of Champagne, died in 1201, Boniface was chosen as its new leader. He was an experienced soldier, and it was an opportunity to reassert his dynasty's reputation after defeat at home. Boniface's family was well-known in the east: his nephew Baldwin and brother Conrad had been Kings of Jerusalem, and his niece Maria was heiress of the kingdom.
Boniface's cousin Philip of Swabia was married to Irene Angelina, a daughter of the deposed Byzantine emperor Isaac II Angelus and niece of Conrad's second wife Theodora. In the winter of 1201 Boniface spent Christmas with Phillip in Hagenau, and while there also met with Alexius Angelus, Isaac II's son, who had escaped from the custody of his uncle Alexius III Angelus. At this time the three discussed the possibility of using the crusading army to restore Alexius' right to the throne. Both Boniface and Alexius travelled separately to Rome to ask for Pope Innocent III's blessing for the endeavour; however, Boniface was specifically told by Innocent not to attack any Christians, including the Byzantines.
The Crusader army was in debt to the doge of Venice, who had provided their fleet. He instructed them to attack the rebellious cities of Trieste, Moglie, and Zara and beat them into submission before sailing for Cairo. The Pope was angered by these Christian cities being attacked by a Crusader army. The doge, Enrico Dandolo, was now the true war leader of this Crusade, with Boniface as only a figurehead. Alexius Angelus made many promises to the Crusaders and their principal financer, the doge of Venice, for riches and honors if they would help him reclaim his kingdom. Dandolo placated the Pope by having Alexius Angelus promise to submit the Orthodox Church to Rome when he was restored to his throne in Constantinople. This being done, the fleet set sail for Constantinople in 1203.
After the conquest of Constantinople in 1204, Boniface was assumed to be the new emperor, both by the western knights and the conquered Byzantine citizens. However, the Venetians vetoed him, believing that he already had too many connections in the Empire (and, likely, felt that they would not have as much influence in the new Empire if Boniface was in control). Instead, they chose Baldwin of Flanders. Boniface founded the Kingdom of Thessalonica and also held territory in Crete, though he later sold Crete to the Venetians. Late 13th and 14th century sources suggest that Boniface based his claim to Thessalonica on the statement that his younger brother Renier had been granted Thessalonica on his marriage to Maria Komnene in 1180.^[1]

Family and death

Boniface was first married c. 1170 to Helena del Bosco. He had at least one son and daughter by her. According to Nicetas Choniates, he had been widowed and married again by 1186. It is not certain whether Agnes was born to his first or second marriage.

★ William VI, b. c. 1173. Marquess of Montferrat.

★ Beatrice, m. Henry II del Carretto, marquess of Savona, as the second of his three wives; she is the ''Bel Cavalher'' (''Fair Knight'') of Vaqueiras's songs, composed in the 1190s.

★ Agnes (d. 1207), m. the Emperor Henry of Flanders in 1204.
Some sources claim that in 1197, Boniface married Eleonora, a daughter of his cousin Humbert III of Savoy. If so, she died in 1202, leaving no known children. Usseglio is sceptical of this marriage having taken place: the evidence is thin, and there would have been questions of consanguinity. It is notable that Vaqueiras, in his songs of the 1190s, addressed Beatrice, but neither he nor any other troubadour working at the court in this period dedicated any songs to a wife of Boniface, which suggests he was a long-term widower.
In 1204 in Constantinople he married the Dowager Empress Margaret of Hungary, daughter of King Bela III of Hungary. Margaret was the widow of Emperor Isaac II Angelus. They had one child:

★ Demetrius, b. c. 1205, King of Thessalonica
Boniface was killed in an ambush by the Bulgarians on September 4, 1207, and his head was sent to Bulgarian Tsar Kaloyan. The loyal Raimbaut de Vaqueiras, who had followed him to the East, probably died with him: it is significant that he composed no ''planh'' (lament) in his memory.

Notes

1. E.g. Salimbene de Adam, ''Chronicle'', 1966 edition vol. 2 p. 790. Cf. , and for full discussion .

Sources

★ The Poems of the Troubadour Raimbaut de Vaqueiras, , Joseph, Linskill, , 1964,

★ O City of Byzantium, Annals of Niketas Choniates, , , Magoulias, , 1984, ISBN 0-8143-1764-2

★ Vaqueiras, Raimbaut de. ''The Epic Letter'' (external link to bilingual text)

★ Chronicles of the Crusades, , Geoffrey de, Villehardouin, , 1963id=ISBN 0-14-044124-7,

Bibliography

★ Byzantium Confronts the West, , Charles M., Brand, , 1968, ISBN 0-7512-0053-0

★ Il Piemonte nell’Età Sveva, , Francesco, Cognasso, , 1968,

★ Dizionario Biografico degli Italiani, vol. XII, , Axel, Goria, , 1970, [http://www.marchesimonferrato.com/Bonifacio%20I.htm

★

★ The Fourth Crusade: The Conquest of Constantinople', , Donald E., Queller, , 1999, ISBN 0-8122-1713-6

★

★ I Marchesi di Monferrato in Italia ed in Oriente durante i secoli XII e XIII, , Leopoldo, Usseglio, , 1926,