In 1191, after learning of William's operations in Acre, Isembart came to the city intending to serve as his bodyguard. However, the Levantine Assassins, having recovered a note stating his intentions from another knight, intercepted and killed him at the city docks. Before dying, he taunted the Assassins, stating that William was already aware of Altaïr Ibn-La'Ahad's plan to assassinate him.
Personality and characteristics
Isembart was unwavering in his loyalty to William of Montferrat, going so far as to lay down his life to protect him. Even after being dealt a mortal wound, Isembart still had enough energy to taunt his enemy.
Equipment and skills
Isembart fought with a standard great sword with sufficient combat prowess. Although he was able to hold his own against an Assassin, he could not deal a killing blow and in turn was killed himself.
Behind the scenes
Isembart, an antagonist appearing in the Assassin's Creed: Rebellion Helix Rift event The Eagle's Shadow, wears the armor of the Templars, despite having no affiliation or membership to the organization.
The name Isembart is a Germanic name of Norman origin, derived from isarn ("iron", "steel") and either biart-r ("bright", "glorious") or from barđa ("broad axe"), together meaning "iron-bright" or "iron-axe".