NEW YORK (AP) — An 88-year-old heir to a storied fortune, trying to stay out of prison in a case that shook New York society, asked appeals judges through his lawyers on Thursday to overturn his conviction on charges of plundering his mother’s millions.

Anthony Marshall, the son of the late philanthropist Brooke Astor, watched from a wheelchair as his attorneys and a prosecutor argued about the conduct and outcome of his 2009 trial, which featured Henry Kissinger and Barbara Walters as witnesses and gave the public a peek behind the curtains of the social elite.