The Hashshashin (Assassins) attempt to assassinate Saladin near Aleppo.

The Order of Assassins were a Nizari Isma'ili order that existed between 1090 and 1275 AD, founded by Hasan al-Sabbah.

Salah ad-Din Yusuf ibn Ayyub, commonly known as Saladin, was the founder of the Ayyubid dynasty. Hailing from a Kurdish family, he was the first sultan of both Egypt and Syria. An important figure of the Third Crusade, he spearheaded the Muslim military effort against the Christian states in the Levant. At the height of his power, the Ayyubid realm spanned Egypt, Syria, Upper Mesopotamia, the Hejaz, Yemen, and Nubia.

Aleppo is a city in Syria, which serves as the capital of the Aleppo Governorate, the most populous governorate of Syria. With an estimated population of 2,098,000 residents as of 2021, it is Syria's largest city by urban area, and was the largest by population until it was surpassed by Damascus, the capital of Syria. Aleppo is also the largest city in Syria's northern governorates and one of the largest cities in the Levant region.