Complex sentence: Nancy Alice Edward Eaton (May 28,1961--January 21,1985) was a Canadian heiress, the great-great-granddaughter of Timothy Eaton, founder of Eaton's department stores.
Split into simpler sentences: Nancy Alice Edward Eaton (May 28,1961--January 21,1985) was a Canadian heiress and a member of the prominent Eaton family. She was the great-great-granddaughter of Timothy Eaton, founder of Eaton's department stores.