Athina Onassis puts down horse after fall at competition

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Athina Onassis Puts Down Horse After Fall At Competition

An international equestrian show jumping tournament took a dark turn Thursday.

Athina Onassis took a serious fall while riding her white mare at the 54th CHI competition in Geneva.

Fortunately, the 29-year-old wasn't injured but her horse wasn't so lucky. The mare broke its leg and had to be put down.

Athina is the heiress to the Aristotle Onassis fortune. Her grandfather was a Greek shipping tycoon who was married to Jacqueline Kennedy.

This is the second time Athina has struggled in the equestrian sport. In 2012, she fell from a different horse and suffered a spinal injury that prevented her from competing for the rest of the year.

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Athina Onassis puts down horse after fall at competition
Athina Onassis-de Miranda of Greece, riding AD Camillez during the team and individual qualifying jumping at the FEI World Equestrian Games in Caen, western France, Tuesday, Sept. 2, 2014. (AP Photo/Michel Euler)
First place winner Switzerland's Steve Guerdat, left, gets sprayed by Switzerland's Clarissa Crotta, who took third, as they celebrate on the winners podium at the Athina Onassis International Horse Show 2012 in Rio de Janeiro, Brazil, Saturday, Oct. 6, 2012. The show which is considered the largest equestrian event in Latin America brings together the best riders in the world competing in jumping and dressage. (AP Photo/Silvia Izquierdo)
Granddaughter and sole heiress of the late shipping tycoon Aristotle Onassis, Athina Onassis, right, and her husband, Brazilian professional show jumper Alvaro "Doda" de Miranda, speak at the Athina Onassis International Horse Show 2012 in Rio de Janeiro, Brazil, Thursday, Oct. 4, 2012. The show which is considered the largest equestrian event in Latin America brings together the best riders in the world competing in jumping and dressage. (AP Photo/Silvia Izquierdo)
Greece's Athina Onassis de Miranda sits on Ad Uceline during the CHIO Equestrian Festival in Aachen, Germany, Thursday, July 5, 2012.(AP Photo/Frank Augstein)
Granddaughter and sole heiress of the late shipping tycoon Aristotle Onassis, Athina Onassis de Miranda talks on a cellphone at the Athina Onassis International Horse Show 2011 in Rio de Janeiro, Brazil, Friday Sept. 2, 2011. The show which is considered the largest equestrian event in Latin America brings together the best riders in the world, competing in jumping and dressage. (AP Photo/Felipe Dana)
Granddaughter and sole heiress of the late shipping tycoon Aristotle Onassis, Athina Onassis de Miranda and her husband, Brazilian professional show jumper Alvaro "Doda" de Miranda, are seen on the first day of the Athina Onassis International Horse Show 2011 in Rio de Janeiro, Brazil, Friday Sept. 2, 2011. The show which is considered the largest equestrian event in Latin America brings together the best riders in the world, competing in jumping and dressage. (AP Photo/Felipe Dana)
Athina Onassis looks on before competing in the Athina Onassis International Horse Show 2010 in Rio de Janeiro, Brazil, Thursday, Aug. 26, 2010. (AP Photo/Felipe Dana)
Greek rider Athina Miranda-Onassis rides horse Welcome Du Petit Vivier before of the Gucci Masters tournament in villepinte, north of Paris, Thursday Dec. 10, 2009. (AP Photo/Jacques Brinon)
Greek billionaire Athina Onassis embraces her husband Brazilian rider Alvaro de Miranda during the Athina Onassis International Horse Show in Sao Paulo, Saturday, Aug. 4, 2007. (AP Photo/Andre Penner)
Greek rider Athina Miranda-Onassis rides her horse Welcome Du Petit Vivier, before of the Gucci Masters horse jumping tournament in Villepinte, north of Paris, Friday, Dec. 11, 2009. (AP Photo/Jacques Brinon)
Greek billionaire Athina Onassis de Miranda is seen during the Athina Onassis International Horse Show in Sao Paulo, Thursday, Oct. 16, 2008. (AP Photo/Andre Penner)
Athina Onassis, second from right, is surrounded from left, by step brother Erik Roussel, 12, father Thierry Roussel, and his wife Gaby at Lussy on Morges, Switzerland in this Nov. 29,1997 file photo. The young heiress to the Onassis shipping fortune can have almost anything she desires except, it seems, a respite from an ugly clash over her money. The granddaughter of Aristotle Onassis turns 13 on Jan. 29, 1998 with her teen-age destiny apparently fixed: stuck in the eye of an international tempestover who should control her inheritance until she takes over on her 18th birthday.(AP File/Donald Stampfli)
Thierry Roussel, his wife Christina Onassis and their daughter Athina, pose on the deck of their newly built yacht "Athena R". The couple arrived at Skorpios from Paris on August 14, 1985 to baptize their eight-month old daughter on this Onassis owned island of Greece's western coast. (AP Photo)
Athina Roussel, daughter of the late heiress Christina Onassis, is shown at the wedding of her father Thierry Roussel on December 5, 1990. Athina, named after her grandmother, is the sole heiress to the Onassis fortune. (AP Photo)
Greek shipping heiress Christina Onassis leaves Hospital Necker in Paris, France, by car after visiting her daughter Athina on February 7, 1985. (AP Photo/Lionel Cironneau)
Heiress Athina Roussel-Onassis, left, arrives at the Athens airport with her father, Thierry Roussel, right, on this July 1998 photo. Roussel was found guilty by an Athens court Wednesday of defaming the four chairmen of the Onassis Foundation. The Foundation which was founded by the late shipping tycoon Aristotle Onassis was inherited by his daughter Christina in 1975. She died in 1988 leaving her then four-year-old daughter, Athena, with a $600 million inheritance. (AP Photo/Lefteris Pitarakis)
Greek Billionaire Athina Onassis watches the Athina Onassis International Horse Show in Sao Paulo, Thursday, Aug. 2, 2007. (AP Photo/Andre Penner)
Aristotle Onassis at airport with wife Athina
Aristotle Onassis with guests at King Saud I naming ceremony
Dec. 30, 2002 - I1188.ATHINA ONASSIS & FATHER THIERRY ROUSSEL.(Credit Image: © Globe Photos/ZUMAPRESS.com)
Aristotle Onassis and wife Athina Livanos on yacht
Aristotle Onassis with his wife Athina and their children
Maria Callas, Athina Onassis and Sarah Churchill
Dec. 30, 2002 - CREDIT: Globe Photos NAME/ / I2062SX.ATHINA ONASSIS & HER FATHER THIERRY ROUSSEL WITH FAMILY TOUR ATHENS GREECE SURROUNDED BY BODYGUARDS, AT THE ACROPOLIS GREECE..3/22/98.. SPHINX/ / 1998.ATHINA ONASSIS & HER FATHER THIERRY ROUSSEL WITH FAMILY(Credit Image: © Globe Photos/ZUMAPRESS.com)
Dec. 30, 2002 - CREDIT: Globe Photos NAME/ / I2062SX.ATHINA ONASSIS & HER FATHER THIERRY ROUSSEL WITH FAMILY TOUR ATHENS GREECE SURROUNDED BY BODYGUARDS, AT THE ACROPOLIS GREECE..3/22/98.. SPHINX/ / 1998.ATHINA ONASSIS & HER FATHER THIERRY ROUSSEL WITH FAMILY(Credit Image: © Globe Photos/ZUMAPRESS.com)
Dec. 30, 2002 - CREDIT: Globe Photos NAME/ / I2062SX.ATHINA ONASSIS & HER FATHER THIERRY ROUSSEL WITH FAMILY TOUR ATHENS GREECE SURROUNDED BY BODYGUARDS, AT THE ACROPOLIS GREECE..3/22/98.. SPHINX/ / 1998.ATHINA ONASSIS & HER FATHER THIERRY ROUSSEL WITH FAMILY(Credit Image: © Globe Photos/ZUMAPRESS.com)
Dec. 30, 2002 - CREDIT: Globe Photos NAME/ / I2062SX.ATHINA ONASSIS & HER FATHER THIERRY ROUSSEL WITH FAMILY TOUR ATHENS GREECE SURROUNDED BY BODYGUARDS, AT THE ACROPOLIS GREECE..3/22/98.. SPHINX/ / 1998.ATHINA ONASSIS & HER FATHER THIERRY ROUSSEL WITH FAMILY(Credit Image: © Globe Photos/ZUMAPRESS.com)
Dec. 30, 2002 - CREDIT: Globe Photos NAME/ / I2062SX.ATHINA ONASSIS & HER FATHER THIERRY ROUSSEL WITH FAMILY TOUR ATHENS GREECE SURROUNDED BY BODYGUARDS, AT THE ACROPOLIS GREECE..3/22/98.. SPHINX/ / 1998.ATHINA ONASSIS & HER FATHER THIERRY ROUSSEL WITH FAMILY(Credit Image: © Globe Photos/ZUMAPRESS.com)
Oct. 6, 2000 - Sao Paulo, BRASIL - 20030424: SAO PAULO, BRAZIL: FILE Brazilian jockey Alvaro Afonso de Miranda Neto with familly: ex-wife Cibeli, Fernando (Cibeli son), and little Viviane, 9 months, in 06/10/00. Alvaro, know as Doda, is dating milionaire Athina Onassis. . EDUARDO NICOLAU/Sao PauloFILES/ K30207(Credit Image: © Globe Photos/ZUMAPRESS.com)
Madrid, Spain. 2nd May, 2014. Athina Onassis De Miranda during the equestrian circuit, 104 Concurso de Saltos Hípicos Internacional 5* Madrid Longines Global Champions Tour. (Photo by Oscar Gonzalez/NurPhoto) © Oscar Gonzalez/NurPhoto/ZUMAPRESS.com/Alamy Live News
** FILE ** Greek shipping heiress Christina Onassis with her daughter Athina seen here in her Paris apartment in this 1985 file Photo. Christina Onassis, heir to the billion-dollar fortune of Greek shipping tycoon Aristotle Onassis died Saturday, November 21, 1988 of a heart attack in Argentina. She was 37. (AP-Photo/raj/str)
Greek shipping heiress Christina Onassis points as she leaves Hospital Necker in Paris, France, after visiting her daughter Athina on February 7, 1985. (AP Photo/Lionel Cironneau)
VILLEPINTE, FRANCE - DECEMBER 4: Alvaro de Miranda Neto of Brazil, better known as Doda and his wife Athina Onassis of Greece compete during day 1 of the Gucci Paris Masters 2014 at Parc des Expositions on December 4, 2014 in Villepinte, France. (Photo by Jean Catuffe/WireImage)
VILLEPINTE, FRANCE - DECEMBER 4: Alvaro de Miranda Neto of Brazil, better known as Doda and his wife Athina Onassis of Greece compete during day 1 of the Gucci Paris Masters 2014 at Parc des Expositions on December 4, 2014 in Villepinte, France. (Photo by Jean Catuffe/WireImage)
BARCELONA, SPAIN - OCTOBER 09: Athina Onassis de MIranda is seen in action at the 'CSIO Barcelona 2014: 103rd International Show' held at the Real Club de Polo de Barcelona on October 9, 2014 in Barcelona, Spain. (Photo by Miquel Benitez/WireImage)
BARCELONA, SPAIN - OCTOBER 09: Athina Onassis de Miranda is seen at the 'CSIO Barcelona 2014: 103rd International Show' held at the Real Club de Polo de Barcelona on October 9, 2014 in Barcelona, Spain. (Photo by Robert Marquardt/Getty Images)
LONDON, ENGLAND - AUGUST 15: Athina Onassis-de Miranda during the Longines Global Champions Tour at Horse Guards Parade on August 15, 2014 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
CANNES, FRANCE - JUNE 12: Athina Onassis de Miranda and Alvaro de Miranda attend the 33rd International Cannes Jumping on June 12, 2014 in Cannes, France. (Photo by Didier Baverel/WireImage)
MADRID, SPAIN - MAY 04: Athina Onassis de Miranda attends Global Champion Tour Day 3 on May 4, 2014 in Madrid, Spain. (Photo by Pablo Cuadra/Getty Images)
WELLINGTON, FL - FEBRUARY 01: Athina Onassis and Roussel De Miranda are sighted at Palm Beach International Equestrian Center on February 1, 2014 in Wellington, Florida. (Photo by Larry Marano/Getty Images)
PARIS, FRANCE - DECEMBER 05: Alvaro de Miranda and wife Athina Onassis attend the 'Gucci Paris Masters 2013' at Paris Nord Villepinte on December 5, 2013 in Paris, France. (Photo by Marc Piasecki/WireImage)
PARIS, FRANCE - DECEMBER 05: Alvaro de Miranda and wife Athina Onassis attend the 'Gucci Paris Masters 2013' at Paris Nord Villepinte on December 5, 2013 in Paris, France. (Photo by Marc Piasecki/WireImage)
OVIEDO, SPAIN - SEPTEMBER 02: (EXCLUSIVE COVERAGE) Athina Onassis And Doda Miranda (2L) are seen at Las Mestas on September 2, 2013 in Oviedo, Spain. (Photo by Europa Press/Europa Press via Getty Images)
GIJON, SPAIN - AUGUST 28: Athina Onassis and Doda Miranda attend 2013 CSIO International Jumping at Las Mestas on August 28, 2013 in Gijon, Spain. (Photo by Europa Press/Europa Press via Getty Images)
MADRID, SPAIN - MAY 05: Athina Onassis de Miranda attends the CSI 5 de Madrid - Longines Global Champions Tour 2013 on May 5, 2013 in Madrid, Spain. (Photo by Europa Press/Europa Press via Getty Images)
GIJON, SPAIN - AUGUST 27: Athina Onassis and Doda Miranda are seen going for shopping on August 27, 2013 in Gijon, Spain. (Photo by Europa Press/Europa Press via Getty Images)
PARIS, FRANCE - DECEMBER 01: Athina Onassis attends the Gucci Paris Masters 2012 at Paris Nord Villepinte on December 1, 2012 in Paris, France. (Photo by Pascal Le Segretain/Getty Images)
Greece's Athina Onassis-De Miranda rides 'AD Uceline' as she competes in the 2012 Vienna Masters International jumping competition as part of the Global Champions Tour in Vienna on September 21, 2012. AFP PHOTO / ALEXANDER KLEIN (Photo credit should read ALEXANDER KLEIN/AFP/GettyImages)
VALENCIA, SPAIN - MAY 06: (SPANISH WEEKLY ENTERTAINMENT MAGAZINES OUT) Athina Onassis and Alvaro Alfonso de Miranda attend the 10th Global Champions Tour Grand Prix of Spain Centro Ecuestre Oliva Nova on May 6, 2012 in Valencia, Spain. (Photo by Europa Press/Europa Press via Getty Images)
MONTE-CARLO, MONACO - APRIL 21: Athina Onassis and her husband Alvaro Alfonso de Miranda Neto attending the Monte Carlo Rolex Masters on April 21, 2012 in Monte-Carlo, Monaco. (Photo by Frederic Nebinger/WireImage)
VILLEPINTE, FRANCE - DECEMBER 02: Athina Onassis Miranda riding at the International Gucci Masters Competition - Day 1 on December 2, 2011 in Villepinte, France. (Photo by Michel Dufour/WireImage)
VILLEPINTE, FRANCE - DECEMBER 02: Me Pessoa and Athina Onassis Miranda attend the International Gucci Masters Competition - Day 1 on December 2, 2011 in Villepinte, France. (Photo by Michel Dufour/WireImage)
VILLEPINTE, FRANCE - DECEMBER 02: Athina Onassis Miranda riding at the International Gucci Masters Competition - Day 1 on December 2, 2011 in Villepinte, France. (Photo by Michel Dufour/WireImage)
VILLEPINTE, FRANCE - DECEMBER 02: (L-R) Athina Onassis De Miranda and Alvaro Alfonso de Miranda Neto attend the Gucci Masters International Grand Prix Competition at Paris Nord Villepinte on December 2, 2011 in Villepinte, France. (Photo by Yves Forestier/WireImage)
VILLEPINTE, FRANCE - DECEMBER 02: Athina Onassis Miranda attends the International Gucci Masters Competition - Day 1 on December 2, 2011 in Villepinte, France. (Photo by Michel Dufour/WireImage)
BARCELONA, SPAIN - SEPTEMBER 23: Alvaro Alfonso de Miranda Neto and his wife Athina Onassis de Miranda attend the CSIO Barcelona: 100th International Show Jumping Competition at the Real Club de Polo on September 23, 2011 in Barcelona, Spain. (Photo by Miquel Benitez/WireImage)
BARCELONA, SPAIN - SEPTEMBER 22: Alvaro Alfonso de MIranda Neto (C) and Athina Onassis (R) attend the CSIO Barcelona: 100th International Show Jumping Competition at the Real Club de Polo on September 22, 2011 in Barcelona, Spain. (Photo by Miquel Benitez/WireImage)
BARCELONA, SPAIN - SEPTEMBER 22: Athina Onassis de Miranda attends the 100th CSIO event at the Real Club de Polo Barcelona on September 22, 2011 in Barcelona, Spain. (Photo by Robert Marquardt/Getty Images)
RIO DE JANEIRO, BRAZIL - SEPTEMBER 04: Athina Onassis de Miranda before the Internacional Jumping Competition (1,50m) as part of the Athina Onassis International Horse Show at Sociedade Hipica Brasileira on September 04, 2011 in Rio de Janeiro, Brazil. (Photo by Alexandro Auler/LatinContent/Getty Images
RIO DE JANEIRO, BRAZIL - SEPTEMBER 03: Athina Onassis de Miranda and Alvaro de Miranda before the Internacional Jumping Competition (1,45m) as part of the Athina Onassis International Horse Show at Sociedade Hipica Brasileira on September 03, 2011 in Rio de Janeiro, Brazil. (Photo by Buda Mendes/LatinContent/Getty Images)
RIO DE JANEIRO, BRAZIL - SEPTEMBER 03: Athina Onassis de Miranda before the Internacional Jumping Competition (1,45m) as part of the Athina Onassis International Horse Show at Sociedade Hipica Brasileira on September 03, 2011 in Rio de Janeiro, Brazil. (Photo by Buda Mendes/LatinContent/Getty Images)
BARCELONA, SPAIN - SEPTEMBER 22: Athina Onassis de Miranda and Alvaro Miranda 'The Doda' are seen during CSIO Barcelona, International Show Jumping Competition, on September 22, 2011 in Barcelona, Spain. (Photo by Europa Press/Europa Press via Getty Images)
RIO DE JANEIRO, BRAZIL - SEPTEMBER 02: Athina Onassis de Miranda during the Athina Onassis International Horse Show at the Sociedade Hipica Brasileira on September 02, 2011 in Rio de Janeiro, Brazil. (Photo by Buda Mendes/LatinContent/Getty Images)
RIO DE JANEIRO, BRAZIL - SEPTEMBER 02: Athina Onassis de Miranda during the Athina Onassis International Horse Show at the Sociedade Hipica Brasileira on September 02, 2011 in Rio de Janeiro, Brazil. (Photo by Buda Mendes/LatinContent/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 26: Athina Onassis attends the Athina Onassis International Horse Show at the Sociedade Hipica Brasileira on August 26, 2010 in Rio de Janeiro, Brazil. (Photo by Buda Mendes/LatinContent/Getty Images)
MONACO - JUNE 26: Princess Caroline of Hanover, Athina Onassis Miranda and Charlotte Casiraghi in Monte Carlo, Monaco on June 26th, 2009. (Photo by Alain BENAINOUS/Gamma-Rapho via Getty Images)
Billionaire Athina Roussel Onassis (L) and her husband, Brazilian rider Alvaro Afonso de Miranda Neto attend the Equestrian Jumping Individual competition of the 2008 Beijing Olympic Games in Hong Kong on August 18, 2008. AFP PHOTO / DDP / DAVID HECKER (Photo credit should read DAVID HECKER/AFP/Getty Images)
Greek billionaire Athina Roussel Onassis (C) kisses her husband, Brazilian rider Alvaro Affonso de Miranda Neto (L) during the 1st Athina Onassis International Horse Show, at Sociedade Hipica Paulista, in Sao Paulo, Brazil, 02 August 2007. For the first time, Brazil houses one of the five-star stages of Global Champions Tour with the most important riders and horses of the world, with over 1 million dollar awards. AFP PHOTO/Mauricio LIMA (Photo credit should read MAURICIO LIMA/AFP/Getty Images)
MONACO - JUNE 28: With the daughter of Alvaro, in Monaco on June 28, 2007. (Photo by Alain BENAINOUS/Gamma-Rapho via Getty Images)
AACHEN, GERMANY - AUGUST 30: Athina Onassis (L) follows the action from the stands during the Jumping team classification at the 2006 World Equestrian Games on August 30, 2006 in Aachen, Germany. (Photo by Vladimir Rys/Bongarts/Getty Images)
MONACO - JUNE 23: Athina Onassis and her husband Alvaro Alfonso de Miranda at the Monte Carlo International Jumping (last day) in Monaco on June 23, 2006. (Photo by Alain BENAINOUS/Gamma-Rapho via Getty Images)
Hasselt, BELGIUM: French-Greek Athina Onassis (R) watches her husband Brazilian Alvaro Affonso de Miranda Neto (L), known as Doda, 24 Februray 2006 during the second day of the Jumping of Hasselt. (Photo credit should read YORICK JANSENS/AFP/Getty Images)
FRANCE - NOVEMBER 03: Christina Onassis And Her Daughter Athina Onassis-Roussel - On November 3Rd, 2005 - In France - Here, 1988 (Photo by Serge BENHAMOU/Gamma-Rapho via Getty Images)
FRANCE - NOVEMBER 03: Christina Onassis And Her Daughter Athina Onassis-Roussel - On November 3Rd, 2005 - In France - Here, 1988 (Photo by Serge BENHAMOU/Gamma-Rapho via Getty Images)
FRANCE - NOVEMBER 03: Christina Onassis And Her Daughter Athina Onassis-Roussel - On November 3Rd, 2005 - In France - Here, 1988 (Photo by Serge BENHAMOU/Gamma-Rapho via Getty Images)
FRANCE - NOVEMBER 03: Christina Onassis And Her Daughter Athina Onassis-Roussel - On November 3Rd, 2005 - In France - Here, 1986 (Photo by Serge BENHAMOU/Gamma-Rapho via Getty Images)
FRANCE - NOVEMBER 03: Christina Onassis And Her Daughter Athina Onassis-Roussel - On November 3Rd, 2005 - In France - Here, 1985 (Photo by Serge BENHAMOU/Gamma-Rapho via Getty Images)
FRANCE - NOVEMBER 03: Christina Onassis And Her Daughter Athina Onassis-Roussel - On November 3Rd, 2005 - In France - Here, 1986 (Photo by Serge BENHAMOU/Gamma-Rapho via Getty Images)
PARIS - UNDATED: Christina Onassis, daughter of Greek shipping magnet Aristotle Onassis. is seen with her daughter Athina in Paris, France. (Photo by Michel Dufour/WireImage)
PARIS - 1986: Athina Onassis Roussel as a baby taken in 1986 in Paris, France. (Photo by Michel Dufour/WireImage)
PARIS - UNDATED: Christina Onassis, daughter of Greek shipping magnet Aristotle Onassis, takes an afternoon stroll with Thierry Roussel on Avenue Foch in Paris, France. (Photo by Michel Dufour/WireImage)
ST. MORITZ, SWITZERLAND - UNDATED: Christina Onassis, daughter of Greek shipping magnet Aristotle Onassis, is seen with her daughter Athina in St. Moritz, Switzerland. (Photo by Michel Dufour/WireImage)
PARIS - UNDATED: Christina Onassis, daughter of Greek shipping magnet Aristotle Onassis, is seen with her daughter, Athina, at the Bois de Boulogne in Paris, France. (Photo by Michel Dufour/WireImage)
PARIS - UNDATED: Christina Onassis, daughter of Greek shipping magnet Aristotle Onassis, enjoys a carousel ride with her daughter, Athina, at Le Jardin d'Acclimation in Paris, France. (Photo by Michel Dufour/WireImage)
Christina Onassis and her mother Athina Livanos Blandford, attending a society wedding in Athens, circa 1970. (Photo by Keystone/Getty Images)
SOLOGNE, FRANCE - UNDATED: Christina Onassis, daughter of Greek shipping magnate Aristotle Onassis, and Thierry Roussel are seen at the Roussel family castle in Sologne, France. (Photo by Michel Dufour/WireImage)
SAINT JEAN CAP FERRAT, FRANCE - UNDATED: Christina Onassis, daughter of Greek shipping magnet Aristotle Onassis, Thierry Roussel and their daughter Athina, are seen during a holiday at Saint Jean Cap Ferrat, France. (Photo by Michel Dufour/WireImage)
Athina Niarchos (d. 1973), the wife of Greek shipping magnate Stavros Niarchos, mourns over the casket of her son, Alexander Onassis (1948 - 1973), her son with former husband and Greek shipping magnate Aristotle Onassis, at the funeral in Athens, Greece, January 31, 1973. (Photo by Pictorial Parade/Getty Images)
Aristotle Onassis (1905-1975) greek shipowner with Stavros Niarchos and Livanos sisters, their wifes Tina (Athina) and Eugenia c. 1950. (Photo by RDA/Getty Images)
388478 09: Athina Roussel, daughter of Christina Onassis, attends the 7th Monte-Carlo International Show Jumping competition April 26, 2001 in Monaco. (Photo by Globalphoto/Liaison) (AMERICAS SALES ONLY)
388478 04: Athina Roussel, daughter of Christina Onassis, takes a fall on the approach to a hurdle April 26, 2001 at the 7th Monte-Carlo International Show Jumping competition. (Photo by Globalphoto/Liaison) (AMERICAS SALES ONLY)
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