 His death caused tremendous grief among the German Crusaders, and most of his troops returned home.After the Crusaders had driven the Muslims from Acre, Philip—in company with Frederick's successor in command of the German crusaders, Leopold V, Duke of Austria—left the Holy Land in August 1191.On 2 September 1192 Richard and Saladin finalized the Treaty of Jaffa, which granted Muslim control over Jerusalem but allowed unarmed Christian pilgrims and merchants to visit the city.