Complex sentence: Merkin is the son of Hermann Merkin, aprominent banker and philanthropistand author, and Ursula Merkin, and the brother Daphne Merkin, a writer.
Split into simpler sentences: Merkin is the son of Hermann Merkin, a prominent banker, philanthropist, and author, and Ursula Merkin. He is the brother Daphne Merkin, a writer.