Complex sentence: Robert Stephenson was born on 16 October 1803, at Willington Quay, east of Newcastle upon Tyne, to George Stephenson and Frances "née" Henderson, usually known as Fanny.
Split into simpler sentences: Robert Stephenson was born on 16 October 1803, at Willington Quay, east of Newcastle upon Tyne. His parents were George Stephenson, and Frances "née" Henderson, commonly known as Fanny.