In the earliest surviving examples of medieval and Renaissance self-portraiture, historical or mythical scenes (from the Bible or classical literature) were depicted using a number of actual persons as models, often including the artist, giving the work a multiple function as portraiture, self-portraiture and history/myth painting. In these works, the artist usually appears as a face in the crowd or group, often towards the edges or corner of the work and behind the main participants. Rubens's The Four Philosophers (1611--12) is a good example. This culminated in the 17th century with the work of Jan de Bray. Many artistic media have been used; apart from paintings, drawings and prints have been especially important.

Can we conclude that does a self portrait have to be of you?
no