Athina Onassis has taken Dutch equestrian entrepreneur Jan Tops to court in Amsterdam this summer, in a dispute over her...

Written on 07/20/2026
theatlaswiregreece

Athina Onassis has taken Dutch equestrian entrepreneur Jan Tops to court in Amsterdam this summer, in a dispute over her $68 million investment in the Global Champions Tour and Global Champions League. The legal action was filed through Corvallis S.A., the holding company Onassis uses to manage her assets and investments. Through Corvallis, she acquired a 25% minority stake in the international showjumping organization for roughly $68 million, around 63 million euros. Her legal team is now demanding an investigation and witness testimony, alleging that the organization's management withheld critical financial information from shareholders. The name Corvallis carries its own history. The full entity, Corvallis Navigation Panama S.A., was founded between 1974 and 1975 and was originally part of Aristotle Onassis's shipping empire, operating as one of the offshore companies he used to own and manage cargo vessels. The company has now been repurposed by Athina as a vehicle for her personal investments. The scope of Aristotle Onassis's business empire is hard to overstate. According to the book "Onassis Business History 1924-1975," the Greek magnate controlled 241 companies in total, with most of them registered offshore in Panama and Liberia. Dutch outlet Headliner first reported details of the Corvallis structure and its role in the Amsterdam proceedings. The case brings renewed attention to how Athina Onassis, the sole heir to one of the most famous fortunes in modern history, manages and defends that inheritance through the courts. #AthinaOnassis #Onassis #GlobalChampionsTour