Complex sentence: In the 1970s he bought the Pink Palace, Jayne Mansfield's Pink Palace previously owned by Jayne Mansfield, in Los Angeles, which he resold in 2002 for $4 million to developers.
Split into simpler sentences: In the 1970s he bought the Pink Palace, Jayne Mansfield's Pink Palace which had been owned by Jayne Mansfield, in Los Angeles. He sold it in 2002 for $4 million to developers.