Richard left for the third crusade and things went reasonably well for him.

理查德去参加第三次十字军东征，事情进展得相当顺利。

And then the loss of Jerusalem caused Pope Gregory VIII to call for a third crusade.

然后耶路撒冷的损失导致教皇格雷戈里八世呼吁第三次十字军东征。