Boniface 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. His 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
Sibylla, the heiress presumptive to the
Kingdom of Jerusalem. In 1179, the
Byzantine emperor Manuel I Komnenos offered his daughter
Maria 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
Andronikos. In 1183, Boniface's nephew
Baldwin V was crowned co-
king of Jerusalem. William V went out to the kingdom to support his grandson, leaving Conrad and Boniface in charge of Montferrat. However, in 1187, Conrad also left for the East:
Isaac II Angelos 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 Marquis 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 of Montferrat. 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
Piedmontese 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. == Fourth Crusade ==