Guglielmo William I, Count of Boulogne

1137 (age 22)

However, Gervase of Canterbury asserts a plot against Henry"s life was discovered in 1154 among some Flemish mercenaries. The plan was to assassinate Henry in Canterbury, and allegedly William of Blois had knowledge of this plot or was in connivance with the mercenaries. Whatever the truth, Henry fled Canterbury and returned to Normandy. William of Blois had married Isabel de Warenne, 4th Countess of Surrey, in 1148. They had no children before his death in 1159. He died of disease before the gates of Toulouse, and was buried at the Poitevin abbey of Montmorel. Annals of Monte Fernando 1159: "Ob. Willelmus comes Bolonie.".

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Background

He was the third son of King Stephen of England and Countess Matilda I of Boulogne. His father instead conceded the throne to the young Henry Plantagenet.

Career

However, Gervase of Canterbury asserts a plot against Henry"s life was discovered in 1154 among some Flemish mercenaries. The plan was to assassinate Henry in Canterbury, and allegedly William of Blois had knowledge of this plot or was in connivance with the mercenaries. Whatever the truth, Henry fled Canterbury and returned to Normandy.

William of Blois had married Isabel de Warenne, 4th Countess of Surrey, in 1148.

They had no children before his death in 1159. He died of disease before the gates of Toulouse, and was buried at the Poitevin abbey of Montmorel.

Annals of Monte Fernando 1159: "Ob. Willelmus comes Bolonie.".

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