MANILA, Philippines (AP) _ An agreement by the children of late dictator Ferdinand Marcos to share their wealth with the government will remain null and void, the Philippine Supreme Court said Wednesday.

The court nullified the secret 1993 agreement in December, ruling the government violated the constitution by promising the Marcos family civil and criminal immunity in exchange for 75 percent of their wealth. Marcos' widow, Imelda, and the couple's children are defendants in pending graft cases.

The court also said the secret agreement would give the family ``a license to perpetrate fraud against the government without any liability'' and set ``a dangerous precedent for public accountability.''

In January, the children _ Imee Marcos-Manotoc, Ferdinand Marcos Jr. and Irene Marcos-Araneta _ asked the court to reconsider, arguing they had not had a chance to express their views.

A five-member court panel said their petition came too late, that they had had plenty of time to participate in the much-publicized proceedings on the legality of the agreement but made no move to get involved.

The agreement was never put into practice because the government was not satisfied the Marcoses had disclosed all assets, as required.

The government claims Marcos illegally amassed billions of dollars during his 20-year rule. He was ousted in a popular revolt in 1986.

Mrs. Marcos has denied any wrongdoing by her husband and said he became rich through gold trading.