WASHINGTON (AP) _ The Library of Congress has received an estimated 500,000 papers of Pamela Harriman, the U.S. ambassador to France who died last year.

Harriman's estate will control access to the papers for 10 years.

The library did not know what personal diaries or letters the Harriman papers may contain, press officer Helen Dalrymple said Monday.

A major figure in the Democratic party, Pamela Harriman was the widow of New York Gov. W. Averell Harriman, an ambassador to the Soviet Union and a leading figure in world affairs under President Franklin Roosevelt.

Her estate also gave the library 29,000 of her husband's papers, to add to the 300,000 it already had.

Born British, she was married to the late Randolph Churchill before moving to the United States and becoming an American citizen.