Jury selection has begun in New York City in the trial of the son of late philanthropist Brooke Astor.

Anthony Marshall is accused of looting the $198 million estate of his Alzheimer's-stricken mother.

More than 100 prospective jurors were summoned Monday to the Manhattan Criminal Courts Building, where the trial will take place.

Justice A. Kirke Bartley estimated that it may take two months for the trial of Marshall, who's 84, and 66-year-old co-defendant Francis Morrissey. The judge has said he must first find out who can serve on a jury that long.

Morrissey, who's a lawyer, is accused of altering Astor's will so that Marshall would get money that was meant for charities.

Astor died in August 2008 at age 105.