Complex sentence: Salvator's son, Ronald, remained in Switzerland after his father's death and his daughter, Janine, emigrated to Argentina where she became the Argentine champion of Dressage in 1989 and 1990 and also represented Argentina at the Pan American Games in 1991.
Split into simpler sentences: Salvator's son, Ronald, remained in Switzerland after his father's death. His daughter Janine emigrated to Argentina where she became the Argentine champion of Dressage in 1989 and 1990 and also represented Argentina at the Pan American Games in 1991.