Anna Freud appears to have had a comparatively unhappy childhood, in which she 'never made a close or pleasurable relationship with her mother, and was really nurtured by their Catholic nurse Josephine'.[4] She had difficulties getting along with her siblings, specifically with her sister Sophie Freud (as well as troubles with her cousin Sonja Trierweiler, a "bad influence" on her). Sophie, who was the more attractive child, represented a threat in the struggle for the affection of their father: 'the two young Freuds developed their version of a common sisterly division of territories: "beauty" and "brains"',[5] and their father once spoke of her 'age-old jealousy of Sophie'.[6]