Complex sentence: In 2001, Marceau separated from Żuławski and began a relationship with producer Jim Lemley, which produced her second child, Juliette, born in London in 2002.
Split into simpler sentences: In 2001, Marceau separated from Żuławski and began a relationship with producer Jim Lemley. Her second child, Juliette, was born in London in 2002.