I work with artists in my profession, many of them do painted portrait commissions as well as other works. Typically, the title of a painting is italicized, right? - or sometimes put in quotes. However, I contend that when a painting is a portrait commission and the subject's name is given as part of the caption that it should not be italicized because it is not a title, but the person's name. The exception might be if one said Portrait of Jane Doe, then it becomes a title - just my thoughts. Does anyone know of an official rule on this?