Old Oligarch has a quiz about which Medieval figure one might be. My top result was “Constanstine” – perhaps a relative of Constantine who converted to Judaism? Also had Arthur son of Uther Pendragon as a top choice as well as Karl der Grosse and Friedrich Barbarossa (my spellings, not theirs).

Best of all though, the closing quote from OO which I heartily second: “I’d rather be a pig’s ass than Mohammad.”