Complex sentence: Maxime Dethomas (1867-1929) was a French painter, draughtsman, pastellist, lithographer, illustrator, and decorator of theatres.
Split into simpler sentences: Maxime Dethomas (1867-1929) was a French painter and theatre decorator. Dethomas was a painter, draughtsman, pastellist, lithographer, illustrator, and decorator of theatres.