 Grace's in-laws refused to honour her husband's will, in which he left everything to his widow, or his last letter to her in which he requested her to ensure that she pursue this - a heavy burden to place on Grace, who was not a mercenary person.Legally, the will was invalid because there was only one witness (the law requires two) and also the marriage took place after the will was made, automatically revoking it.For years Grace received nothing, so she began legal proceedings against her mother- and father-in-law, Count George Noble Plunkett and his wife in 1934.