Complex sentence: Louis Gustave Ricard (1 September 1823--23 January 1873) was a French painter born in Marseille, and studied first under Auber in his native town, and subsequently under Coignet in Paris.
Split into simpler sentences: Louis Gustave Ricard (1 September 1823--23 January 1873) was a French painter born in Marseille. He studied first under Auber in his native town, and subsequently under Coignet in Paris.