Complex sentence: One of his first serious lovers was Smith College literature professor Newton Arvin, who won the National Book Award for his Herman Melville biography in 1951 and to whom Capote dedicated "Other Voices, Other Rooms".
Split into simpler sentences: One of his first serious lovers was Smith College literature professor Newton Arvin, who won the National Book Award for his Herman Melville biography in 1951. It was to Arvin that Capote dedicated "Other Voices, Other Rooms".