Prominent American lawyer Alan Dershowitz has filed a detailed denial of a woman's claims he had sexual contact with her when she was underage in a case also involving Britain's Prince Andrew.

The court document says Dershowitz has multiple witnesses to refute the allegations made by the woman, identified only as Jane Doe No. 3. She claims wealthy financier Jeffrey Epstein required her to have sex with Dershowitz, Prince Andrew and others when she was still a minor.

Buckingham Palace has also emphatically denied her allegations.

Epstein pleaded guilty in 2008 to Florida state sex charges but avoided more serious federal charges in a deal negotiated partly by Dershowitz.

Dershowitz, a Harvard law professor, is perhaps best known for defending O.J. Simpson and also Claus Von Bulow in the "Reversal of Fortune" case.