Complex sentence: Palmer is estimated to have been born in 1762, she came to notice with a five-volume epistolary novel called "Female Stability; or the History of Miss Belville", which was published in 1780.
Split into simpler sentences: Palmer is estimated to have been born in 1762 and she comes to notice with a five volume novel told as series of letters. It was called "Female Stability; or the History of Miss Belville" and it was published in 1780.