William of Montferrat
The fifth templar assigned by Al Mualim for Altair to assassinate.
He serves King Richard as Regent Lord of Acre, and spends most of his time training and preparing his men for the "coming war". However, few of his soldiers have actually been sent to join Richard at Arsuf, leading people to wonder what "war" he's referring to. He's currently on edge as he's expecting a visit from King Richard, giving Altair the opportunity he needs to get close to him. William is preparing to use ships in the dock to block reinforcements into Acre for Richard, causing him to lose reinforcements. He has regular arguments with Richard, it is thought he is taking Acre for his son, but infact he is taking it for the Templars that he serves.
He is based off the real life William V, Marquess of Montferrat, who died in 1191. (Not Conrad of Montferrat (1140-1192), who was William's son)