Complex sentence: He met Henri Louis Habert de Montmor, founder of a famous scientific salon, Jean Chapelain, a specialist on Italian litterature, Valentin Conrart, and Ismael Bouillau.
Split into simpler sentences: He met Henri Louis Habert de Montmor, founder of a famous scientific salon. They met Jean Chapelain, a specialist on Italian litterature, Valentin Conrart, and Ismael Bouillau.