Complex sentence: Robert Beatson, LL.D. (born 1742 died 1818), compiler and miscellaneous writer, was born in 1742 at Dysart in Fifeshire.
Split into simpler sentences: Robert Beatson, LL.D. (born 1742, died 1818) was a Scottish compiler and miscellaneous writer. He was born in 1742 at Dysart in Fifeshire.