Lark Previn, the Vietnamese-born adopted daughter of actress Mia Farrow and conductor André Previn, has died in New York at the age of 35 after a lengthy illness.

The 35-year-old mother of two had been ailing for a decade but the cause of her death on Christmas Day was not released.

Neighbours at her Brooklyn apartment building told New York Daily News reporters that she was reclusive and gave no hint that her mother was a celebrity.

They said she had lost a lot of weight and most of her hair in recent months.

Previn was cremated Tuesday at Brooklyn's Green-Wood Cemetery.

Previn was one of three children adopted by Farrow and her then-husband. Her sister by adoption, Korean-born Soon-Yi Previn, was at the centre of Farrow's messy breakup with Woody Allen. Soon-Yi Previn married Allen, who is 35 years her senior, in 1997.

Lark Previn is survived by daughters, Sara, 13, and Christine, 12, and common-law husband Robert Garcia.

Farrow, 63, is a United Nations humanitarian ambassador. She and her son with Allen, Ronan Farrow, 21, have led demonstrations against human rights violations in Darfur.

She lost another adopted daughter, Tam Farrow, in 2000, at the age of 21, also after a long illness.

With files from the Associated Press