Mia Farrow's 35-Year-Old Daughter Dies
12/30/2008 AT 01:40 PM EST
Previn, who was mom to daughters Sara, 13, and Christine, 12, had been ill for a decade, though a cause of death was not released, according to the New York Daily News.
Lark, whom Farrow and her former husband Andre Previn adopted from Vietnam in 1973, was among the first of many children adopted by the actress.
A memorial for Lark was held Monday night in Brooklyn. Her longtime boyfriend, Robert Garcia, declined to comment. – Marla Lehner