Saladin

Saladin (or Salah al-Din)(Arabic: صلاح الدين) Full name: Yusuf Salah al-Din Ibn Ayyub (Arabic: يوسف صلاح الدين بن أيوب), or simply Salah al-Din al-Ayyubi (Arabic: صلاح الدين الأيوبي)

[Note that "Salah al-Din" is one name, not a first name and surname]

Saladin is the commander of the Muslim armies and lands arrayed against the invading Richard the Lionhearted, and never makes a direct appearance in the game. He is, however, referenced frequently by other characters, and his forces are engaged with Richards during the battle of Arsuf.