Complex sentence: Lorde later became involved with Gloria Joseph, her partner until her death aged 58 on November 17,1992, in St. Croix, after a 14-year struggle with breast cancer.
Split into simpler sentences: Lorde later became involved with Gloria Joseph, her partner until Lord's death. Lord died on November 17,1992, in St. Croix, after a 14-year struggle with breast cancer.