This looks like a lovely article. Only one question (that I ask everyone) - Where is the picture from, and did they offer free copyright of the image? Medeival items themselves aren't normally copyright, but photos of them often are copyright to the person who took the photo or the book it was published in. Books over 100, indeed often over 70 years old, are normally out of copyright, and can often be used on the web. Other sources that allow use of images often specify that you must name your source. Even if they don't specify, it's best to acknowledge your source anyway(eg "this image came from ....., used with permission, or out of copyright).
Yes I'm being fussy (and note I'm not saying must anywhere), but that's what keep us a good reputation on the web. Tiff