An attorney for Anthony Marshall, the son of legendary socialite and philanthropist Brooke Astor, yesterday urged a state appeals panel to overturn what he insisted was an unfair conviction for looting millions of dollars from his mother’s estate when she was mentally impaired and to spare his client a fatal prison term.

Marshall was sentenced to one to three years on one count of grand larceny in December 2009 following a jury trial before Acting Supreme Court Justice A. Kirke Bartley (NYLJ, Dec. 22, 2009).