On September 7, 1191, during the Third Crusade, Richard I of England defeated Saladin in the Battle of Arsuf. A short excerpt from the article:
"Aftermath of Arsuf
Exact casualties for the Battle of Arsuf are not known, but is estimated that Crusader forces lost around 700 to 1,000 men while Saladin's army may have suffered as many as 7,000. An important victory for the Crusaders, Arsuf boosted their morale and removed Saladin's air of invincibility. Though defeated, Saladin quickly recovered and, after concluding that he could not penetrate the Crusader's defensive formation, resumed his harassing tactics. Pressing on, Richard captured Jaffa, but the continued existence of Saladin's army prevented an immediate march on Jerusalem. Campaigning and negotiations between Richard and Saladin continued over the next year until the two men concluded a treaty in September 1192 which allowed Jerusalem to remain in Ayyubid hands but permitted Christian pilgrims to visit the city."