Three of the most important kings in Europe answered the call. Philip, cowardly schemer II of France, Richard, Lionheart I of England, and Frederick, I am going to drown anticlimactically on the journey while trying to bathe in a river, Barbarossa, of the not-holy, not-Roman, and not-imperial Holy Roman Empire. Both Richard and Saladin were great generals who earned the respect of their troops. And while from the European perspective the crusade was a failure because they didn't take Jerusalem, it did radically change crusading forever by making Egypt a target. Richard understood that his best chance to take Jerusalem involved first taking Egypt, but he couldn't convince any crusaders to join him because Egypt had a lot less religious value to Christians than Jerusalem. So Richard was forced to call off the crusade early, but if he had just hung around until Easter of 1192, he would have seen Saladin die. And then Richard probably could have fulfilled all his crusading dreams, but you know, then we wouldn't have needed the Fourth Crusade.