On January 15, 2026, Princess Irene of Greece and Denmark, beloved sibling of Spain’s Queen Sofia and aunt to King Felipe, died at the age of 83 at Zarzuela Palace in Madrid. The Greek Royal Family confirmed her death, revealing that she passed away surrounded by loved ones at 11:40 local time following a period of cognitive decline.
Princess Irene was born on May 11, 1942, in Cape Town, South Africa, during the exile of her family. Her parents, Crown Prince Paul and Princess Frederika (later King Paul I and Queen Frederica), fled Athens due to the Nazi invasion of Greece in World War II. Her family returned to Greece in 1946 after a referendum restored her uncle, King George II, to the throne.
Under the tutelage of renowned pianist Gina Bachauer, Princess Irene honed her skill as a concert pianist. She had a professional career in the 1970s and received a standing ovation lasting three minutes after a performance at the Royal Festival Hall in 1969. A lifelong passion for music was paralleled by her deep interest in archaeology.
Princess Irene collaborated with Queen Sofia on archaeological excavations and in 1960, she co-published the Archaeological Digest with Greek scholar Theophano Arvanitopoulou. The sisters shared a close bond throughout their lives, with Irene serving as a surrogate mother to Sofia’s three children.
In 1964, her life took a significant turn when King Paul died from illness, leading to her brother Constantine’s ascension to the throne as King Constantine II of Greece at the age of 23. Initially, he enjoyed public support but later faced political instability. A military coup in 1967 eventually forced Constantine into exile, and the Greek monarchy was officially abolished in 1973.
During the volatile 1970s, Princess Irene moved to India with her mother, where she immersed herself in the study of Hindu culture. It is thought that she converted to Hinduism during this time, cultivating a deep spirituality that remained a guiding force in her life. Following Queen Frederica’s death in 1981, Princess Irene, then 39, moved to Spain to be closer to her sister.
In a conversation with HOLA magazine, Princess Irene humorously observed, “I came to Madrid for five days and stayed for five years.” Over time, she felt her place was with Sofia and she eventually settled into an apartment at Zarzuela Palace, the residence of King Felipe, Queen Letizia, Princess Leonor, and Infanta Sofia.
Despite her royal status, Princess Irene preferred to keep a low profile and focused her efforts on charitable causes. In 1986, she started the World in Harmony NGO and the World in Harmony Foundation, generously bequeathing her entire inheritance to these organizations.
“I have no status; I am the Queen’s sister, nothing more, and I am not an official,” once declared Princess Irene. She emphasized that her sister and the king were the official representatives, not her. In 2018, she acquired Spanish nationality and gave up her Greek nationality.
Her nieces and nephews affectionately called her “Aunt Pecu,” a contraction for peculiar, a nod to her unique and unorthodox personality. Princess Irene happily accepted this nickname, admitting in interviews that her family often playfully teased her for being the unconventional member, including Queen Sofia.
Princess Irene kept close connections with several generations of European royalty. Her father, King Paul, was the first cousin of Prince Philip, who was born as Prince Philippos of Greece and Denmark. Her late brother, King Constantine II, was Prince William’s godfather and remained lifelong friends with King Charles.
Princess Irene’s last public appearance was in February 2025 in Athens at the wedding of her nephew and godson, Prince Nikolaos of Greece, to Chrysi Vardinogiánni. She attended the event in a wheelchair, indicative of her declining health. Reports suggest she had been experiencing cognitive decline for several years prior to her death.
As Princess Irene’s health worsened, Queen Sofia cancelled royal engagements in Palma de Mallorca in January 2026 to remain at her sister’s side. The former queen was present when Princess Irene died.
The Spanish royal household confirmed the death in a statement. King Felipe and Queen Letizia, along with Queen Sofia, announced the princess’s death at the palace, expressing their profound sorrow at her passing.
Survivors include Queen Sofia, King Felipe of Spain, Crown Prince Pavlos of Greece, and numerous nieces, nephews, and their families. Infanta Cristina of Spain named her daughter, born in 2005, Irene in tribute to her aunt. The Greek Royal Family stated that funeral arrangements would be announced in due course.
In her 83 years, Princess Irene experienced exile, political turmoil, and personal evolution, all while remaining dedicated to her family and philanthropic endeavors. Her life journey took her from war-torn South Africa to post-war Greece, from spiritual India to her final residence in Spain, where she was a consistent, albeit understated, presence in the lives of those she cherished.