 After a three-day fast, on 8 July the crusaders performed the procession as they had been instructed by Desiderius, ending on the Mount of Olives where Peter the Hermit preached to them, and shortly afterward the various bickering factions arrived at a public rapprochement.News arrived shortly after that a Fatimid relief army had set off from Egypt, giving the Crusaders a very strong incentive to make another assault on the city.The final assault on Jerusalem began on 13 July; Raymond's troops attacked the south gate while the other contingents attacked the northern wall.