Complex sentence: Frankl died on September 2,1997, of heart failure and was survived by his wife Eleonore, his daughter Dr. Gabriele Frankl-Vesely, his grandchildren Katharina and Alexander, and his great-granddaughter Anna Viktoria.
Split into simpler sentences: Frankl died on September 2,1997, of heart failure. He was survived by his wife Eleonore, his daughter Dr. Gabriele Frankl-Vesely, his grandchildren Katharina and Alexander, and his great-granddaughter Anna Viktoria.