The frail, white-haired Marshall was sentenced by Manhattan Supreme Court Justice Kirke Bartley to 1-to-3 years in state prison, reports New York's Daily News. Prosecutors had asked that Marshall be given up to 4½ years.
Marshall is to turn himself over on Jan. 19, which allows him to spend his holidays with his family, as his attorneys had requested.
Before his sentencing, Marshall rose to say, "Thank you, Your Honor. I have nothing to add to what my attorneys have said."
Prosecutors had charged that Marshall siphoned money from his mother's estate to please the tastes of his much-younger wife, Charlene, 64, who was married to the pastor of the Episcopal church near Astor's Maine summer estate when she and Marshall met. Apparently, Astor was no fan of her social-climbing daughter-in-law.
In court on Monday, when she heard the sentence imposed on her husband, Charlene wept.