Board Thread:Lore Discussion/@comment-17045460-20130609055613/@comment-24444727-20140120142343

If you read Cicero's journal 3 (I think), it says that his final contract before he became keeper was a jester. After that he was not allowed to kill. As he was kept from killing, being the keeper of the night mother, he thought back fondly of the maniacal laughter of the jester.

This is where Cicero obtains his infamous garb.