Complex sentence: Lauder was born in New York City, the son Joseph Lauder, by his wife Estée Metzner, a Hungarian Jewess, founder of Estée Lauder Companies, and the younger brother of Leonard Lauder, chairman of the board of the Estee Lauder company.
Split into simpler sentences: Lauder was born in New York City, the son Joseph Lauder, by his wife Estée, founder of Estée Lauder Companies. He is the younger brother of Leonard Lauder, chairman of the board of the Estee Lauder company.