Complex sentence: Their daughter Gabrielle Rich Aouad died of leukemia at age 27, leading her mother and widower, Philip Aouad, to found the Gabrielle's Angel Foundation for Cancer Research, formerly named the G&P Foundation for Cancer Research.
Split into simpler sentences: Their daughter Gabrielle Rich Aouad died of leukemia at age 27. This led her mother and widower, Philip Aouad, to found the G&P Foundation for Cancer Research.