Complex sentence: Jones was the only son of John Jones, a mezzotint engraver, he became a student at the Royal Academy in 1801 at the early age of 15, exhibiting his first work depicting a biblical scene in 1803.
Split into simpler sentences: Jones was the only son of John Jones, a mezzotint engraver. He became a student at the Royal Academy in 1801 at the early age of 15, exhibiting his first work depicting a biblical scene in 1803.