Complex sentence: Falling in love with Shakespeare, she was broken-hearted when he married Hathaway, fleeing to Italy, where she became a nun of the order of Saint Clare and wrote "A Lover's Complaint", expressing her feelings about Shakespeare.
Split into simpler sentences: Falling in love with Shakespeare, she was broken-hearted when he married Hathaway. She fled to Italy, where she became a nun of the order of Saint Clare and wrote "A Lover's Complaint", expressing her feelings about Shakespeare.