With a literature review of the psychoanalytic and psychological research on sibling relationship, it is discussed how the theme of sibling relationship has been treated, more or less explicitly, by classic authors and within the contemporary international panorama. The first part of the paper focuses on classic authors of the psychoanalytic tradition, with a particular emphasis on theoretical developments. Subsequently, three specific contemporary psychoanalytic theorizations on sibling relationship are compared: René Kaës in France, Luis Kancyper in Argentina, and Juliet Mitchell in England. The final part of the paper presents a synthetic review of psychological research on sibling relationship.
Keywords: Fraternal; Siblings; Jealousy; Rivalry; Support