“ Surnames: Most surnames fall into one of four categories. Patronymic surnames such as Johnson pass from father to son (literally, 'Son of John'). Occupational surnames such as Cook or Miller stem from an individual's livelihood. Topographic names such as Forest or Ford identify habitation. There are also a few surnames that derive from individual characteristics or nicknames...Small and Stern for example.”
“ Diseased people, (leprosy or any other such fear inducing disease) when traveling, will often times wear a cloak that entirely covers their body and ring a bell as they travel, used as a warning for any others to stay away. Could be used for a disguise or safe passage.”
“ Patterns in surnames: There are many ways a surname could have evolved over centuries. One possibility is migration. A Roman name may have traveled to France and hence to England where it was later Anglicized. Case in point - the surname Lawrence went from Laurentius (Roman) to Laurent (French) to Lawrence (English) and then to Lowry (Scottish). There is also natural etymological evolution. For example, a Middle English spelling may have evolved to a modern English spelling (e.g. Stiward to Stewart). Where did your character's Surname come from?”