Knights Templar and Knights Hospitaller, the first would cut you about the second stitch you back together. As I pointed out, the museum has changed character since its refit. Now, you can take photos but the artifacts from the 12th century - those brought back from the Crusades - seem to have vanished, and most in the museum seem to date from the 16th Century. The best bits are those only available to see on the free tours, when you can see some astonishing pieces from the knights time in Malta. It is still worth a visit, but I recommend you join one of the tours, they really give you a sense of the history.