She was the primary beneficiary of his will and received the bulk of her husband's fortune of $400 million after he died in 1983 ($983 million as of 2017). Excluded from their father's will, Seward Johnson's six children sued on grounds that their Father wasn't mentally competent at the time he signed the will. The case went to trial but was settled prior to return of a verdict, and the children were granted about 12% of the fortune, leaving Piasecka Johnson in control of the majority of the estate.