Complex sentence: However, in 1963, two years after Rockefeller's divorce from his first wife, he married Margarita "Happy" Murphy, a woman 15 years younger who had just divorced her husband and surrendered her four children to his custody.
Split into simpler sentences: However, in 1963, two years after Rockefeller's divorce from his first wife, he married Margarita "Happy" Murphy. Happy Rockefeller was a woman 15 years younger than Nelson, who had just divorced her husband and surrendered her four children to his custody.