| Fourth Crusade and the Seven Knights Templar | |
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| Comments: | This is an article about a fictional representation of an historical location, character or entity; please see the article about Fourth Crusade and the Seven Knights Templar on Wikipedia. |
| Appearances | |
| Referenced: | "Bad Teeth" |
The Fourth Crusade was supposed to be an expedition to conquer Muslim-controlled Jerusalem from Egypt. Instead, in April 1204, the Crusaders of Western Europe invaded and sacked the Christian city of Constantinople.
Following the sacking of Constantinople, the knights in service to the Seven Houses returned to western Europe with a treasure so powerful that they feared the consequences of its coming into the possession of the houses they served. They hid the treasure and created a map consisting of seven sections, each on the handle of a key. Nick's Key is one of the seven.