The final assault of the city was made from the marked location.

 Jack Crane

Siege of Jerusalem (1099)

The Siege of Jerusalem took place from June 7 to July 15, 1099 during the First Crusade. During it, the Crusaders stormed and captured the city from Fatimid Egypt. The Siege is notable for the massacre that followed, during which virtually the entire population of Jerusalem was slaughtered.

• http://en.wikipedia.org/wiki/Siege of Jerusalem (1099)
• Spilling, M., 2010, Battles that Changed History: Key Battles that Decided the Fate of Nations: Amber Books, London, 448p