Tatiana Radziwiłł

Princess Tatiana Maria Renata Eugenia Elisabeth Margarete Radziwiłł (28 August 1939 – 19 December 2025) was a French-Polish aristocrat, bacteriologist and nurse.

The eldest daughter of Prince Dominik Rainer Radziwiłł and Princess Eugénie of Greece and Denmark, she was a member of the House of Radziwiłł and a close relative to the Greek, Romanian, Spanish, Danish, British, and Serbian royal families and the former imperial families of Austria, France, and Russia.

Radziwiłł served as a bridesmaid at the Wedding of Prince Juan Carlos of Spain and Princess Sophia of Greece and Denmark in 1962 and at the wedding of Constantine II of Greece and Princess Anne-Marie of Denmark in 1964. She remained a close friend and courtier of her second cousin, Queen Sofía of Spain.

Early life and family Radziwiłł was born in Rouen, Normandy on 28 August 1939 to Prince Dominik Rainer Radziwiłł, an officer in the Polish Army, and Princess Eugénie of Greece and Denmark, a member of the Greek royal family. By birth, she was a member of the House of Radziwill, one of the wealthiest and most important Polish-Lithuanian magnate families, and was the granddaughter of Prince Hieronim Mikołaj Radziwiłł and Archduchess Renata of Austria. They were later joined by her grandparents, Prince George of Greece and Denmark and Princess Marie Bonaparte, as well as other members of the Greek royal family, including Crown Princess Frederika and her children. Throughout her childhood, Radziwiłł became close friend with her second cousin, Princess Sophia of Greece and Denmark (the future Queen of Spain). She also spent a lot of her childhood with her maternal grandmother, Princess Marie, who was a psychoanalyst and authored Le Livre de Tatiana shortly after Tatiana's birth.

Radziwiłł returned to France in 1945 following the end of the war, just three years after the birth of her brother, Prince George. She was educated in schools in France and in Greece, studying music and languages. She took part in the ship tour organized by Queen Frederica and her husband King Paul of Greece in 1954, which became known as the “Cruise of the Kings” and was attended by over 100 royals from all over Europe.

Public life and royal duties As a relative of many reigning royal families in Europe, Radziwiłł attended various events across the continent including the Coronation of Elizabeth II in 1953 and the Royal Cruise Agamemnon in 1954. As a young woman, Radziwiłł was considered as a potential wife for the future Harald V of Norway. In 1956, she was part of the official entourage at a reception for King Paul of Greece in Bois de Boulogne and at the Hôtel de Ville, Paris. She remained close to the Greek royal family, serving as a bridesmaid for her cousin, Princess Sophia, when she married the future King of Spain in 1962. Radziwiłł served alongside Princess Irene of Greece and Denmark, Princess Irene of the Netherlands, Princess Alexandra of Kent, Princess Anne d'Orléans, Infanta Pilar of Spain, Princess Anne-Marie of Denmark, and Princess Benedikte of Denmark.

In March 1963, Tatiana Radziwiłł attended the festivities celebrating the 100th Anniversary of the Greek Monarchy. She was present at the doxology service, a parade, and a gala performance at the National Theatre of Greece. Later that year, she attended a lunch at Mon Repos held in honor of Athenagoras I of Constantinople. In August 1963, she accompanied the Crown Prince of Greece while he hosted the 11th World Scout Jamboree.

In 1964, she served as a bridesmaid in the wedding of her cousins, Constantine II of Greece and Princess Anne-Marie of Denmark.

In 2021, she attended the wedding of Prince Philippos of Greece and Denmark and Nina Flohr.

In 2024, she attended the wedding of Princess Theodora of Greece and Denmark and Matthew Kumar.

Personal life and death While studying nursing and bacteriology at the University of Paris, Radziwiłł met a French cardiologist, Dr. Jean Henri Fruchard, the son of Colonel Dr. Henri Fruchard and his second wife, Eunice McCooey. Their wedding was attended by members of the Greek and Danish royal families, including King Constantine II of Greece, Queen Anne-Marie of Greece, Dowager Queen Frederica of Greece, Queen Ingrid of Denmark, Princess Alice of Greece, Princess Irene of Greece, and Princess Sophia of Greece.

Radziwiłł and Fruchaud had two children, Fabiola (born 1967) and Alexis (born 1969).

A close friend and second cousin of Queen Sofía of Spain, Radziwiłł accompanied the Queen on international trips and attended events at Zarzuela Palace and Marivent Palace.

Radziwiłł died on 19 December 2025 in Paris, at the age of 86.

She was known to her family as "Tatan".

Her funeral took place on 10 January 2026 at Saint-Thomas-d'Aquin, Paris and was attended by members of the Spanish and Greek royal families and their relatives, including King Felipe VI and Queen Sofia of Spain as well as Queen Anne-Marie and Crown Prince Pavlos of Greece.

Popular culture Radziwiłł is portrayed by Paloma Bloyd in Antonio Hernández's 2011 Spanish television film directed Sofía. She was also portrayed in Benoît Jacquot's 2004 television film Princesse Marie. In his 2013 book, La récréation, Frédéric Mitterrand writes about attending an exhibition on Princess Marie Bonaparte with Radziwiłł.