Complex sentence: According to his own letters and diary entries, Fitzgerald's character of Daisy was based on Chicago socialite and debutante, Ginevra King, whom he had met on a visit back home in St. Paul, Minnesota while enrolled as a student at Princeton University.
Split into simpler sentences: According to his own letters and diary entries, Fitzgerald's character of Daisy was based on Chicago socialite and debutante, Ginevra King. He had met on a visit back home in St. Paul, Minnesota while enrolled as a student at Princeton University.