A bird's-eye view of two houses on the former estate of Madame Chiang Kai-shek in Long Island. On the left is a 19,000 square-foot mansion on12-acres of land that has gone under contact. On the right is a five-bedroom Hamptons-style house that went on the market on Friday for $4.9 million. Madame Chiang Kai-shek lived in a house on 18-acres of the 37-acre estate for two decades until it was sold in 1998 and divided into three pieces of land. Her house was then sold and renovated, and is not for sale. PROVIDED TO CHINA DAILY

A 12-acre piece of land with a 19,000-square-foot mansion on the 37-acre Long Island estate that was the former home of Madame Chiang Kai-shek is under contract for its asking price of $11.8 million after being on the market for 18 days.

The house was built in 2004 and has nine bedrooms, nine bathrooms, six fireplaces, a movie theatre, billiards room, gym and sauna. The parcel also has a barn and carriage house, both of which were at one time owned by Madame Chiang.

Jason Friedman, whose firm Friedman Team represented the sellers, said a confidentiality agreement prevented him from disclosing details about the purchaser.

Located in Lattingtown, Long Island, 30 miles from Manhattan, the 37-acre estate was divided into three pieces of approximately 18 acres, 12 acres and 6 acres when it was sold in 1998.

The six-acre property now has an 8,000 square-foot Hamptons-style home with five bedrooms and 6.5 baths. It was put up for sale at $4.9 million on Aug 14, with showings to start on Monday.

Madame Chiang Kai-shek lived for two decades in a house on the 18-acres until all three parcels were sold in 1998. She then moved to an apartment in Manhattan. Her house was sold and renovated after the entire 37-acre estate was acquired.

Madame Chiang died in 2003 at the age of 106.

A devout Christian educated at Wellesley College in Massachusetts, she was born in southern China and married Chiang Kai-shek in 1927.

Her elder sister, Soong Ching-ling, married Dr Sun Yat-sen, a forerunner of the Chinese revolution and the founder of the Republic of China (1912-1949). She was elected the vice-president and honorary president of the People's Republic of China for her great contributions made to the Chinese revolution.

Soong Ai-ling, another sister of Madame Chiang, married Kung Hsiang-hsi, the Nationalist financial minister, a tycoon in the Republic of China.

In 1949, Madame Chiang fled to Taiwan. When Chiang Kai-shek died in 1975, she left Taiwan and settled on the Long Island estate.