Anthony D. Marshall, 85, the son of socialite Brooke Astor, was sentenced yesterday to a least a year in state prison for looting his mother’s $132 million estate.

Acting Manhattan Supreme Court Justice A. Kirke Bartley (See Profile) gave an identical 1-to-3 year sentence to Francis X. Morrissey, 66, a lawyer charged along with Mr. Marshall of pressuring Ms. Astor to make will changes at a time she was suffering from Alzheimer’s disease.