Complex sentence: In August 1984, Anders proposed to Balling, however her mother died shortly afterward, on November 5 and the couple were also involved a road accident on November 12, but they were not injured.
Split into simpler sentences: In August 1984, Anders proposed to Balling, but her mother died soon after that, on November 5. Shortly afterwards the couple were involved a road accident on November 12, but they were not injured.