Complex sentence: There, Alfred recognizes Bennacio, a knight protector of the sword (and the lead monk who attacked him); he reveals that all the defenders, including Samson, were killed at Jativa, and the sword was lost.
Split into simpler sentences: There, Alfred recognizes Bennacio, a knight protector of the sword (and the lead monk who attacked him). Bennacio reveals that all the defenders, including Samson, were killed at Jativa, and the sword was lost.