CNN reports.The suit from Mary Trump also targets her aunt, retired judge Maryanne Trump, and her uncle, the recently deceased Robert Trump.
Mary claims that when her grandfather Fred Trump died in 1999, her father's siblings conspired to deny her and her brother their rightful inheritance.
Mary said her Uncle Robert informed her she would not receive an equal share of Fred Trump's inheritance because her father, Fred Trump Jr., was an alcoholic, who succumbed to the disease in 1981.
Mary was also allegedly told she and her brother were not receiving a fair share of the inheritance because Fred Trump Sr., disliked her mother.Mary and her brother eventually signed an agreement awarding them a small portion of Fred Trump's estate, but.