Complex sentence: Augustus Jules Bouvier (born 1837) was a first known to have exhibited at the British Institution in 1845 with a picture entitled The Fish Market in Boulogne.
Split into simpler sentences: Augustus Jules Bouvier (born 1837) was a first known to have exhibited at the British Institution in 1845. He is first known to have exhibited at the British Institution in 1845 with a picture entitled The Fish Market in Boulogne.