Hong Kong ? Nina Wang, a pigtailed Hong Kong businesswoman who turned her slain husband’s fortune into a real-estate empire that made her one of the world’s richest women, has died. She was 69.

Wang’s spokesman Ringo Wong said Wang died Tuesday. He did not describe the cause of death, but Hong Kong media reported that Wang had ovarian cancer that spread to her liver and other organs.

Forbes magazine ranked her this year as the world’s No. 204 richest person, with a fortune of $4.2 billion.