Eugenia Martínez de Irujo is a Spanish aristocrat, jewelry designer, artist, and social figure who has a net worth of $100 million.

Eugenia is the 12th Duchess of Montoro and a Grandee of Spain. She is the youngest child and only daughter of Cayetana Fitz-James Stuart, the 18th Duchess of Alba, who controlled one of Europe's most valuable aristocratic fortunes.

Although Eugenia inherited substantial land and real estate from her mother, she has also developed an independent public career through fashion, jewelry, art, and charitable projects. She became closely associated with the Spanish jewelry company TOUS, creating multiple collections under the Eugenia by TOUS label. Her designs have drawn inspiration from animals, nature, her daughter, and the history of the House of Alba.

Eugenia has also exhibited her paintings, collaborated on clothing, accessories, homeware, and porcelain, and supported organizations focused on children, animals, and environmental conservation. Like her mother, she is known in Spain for her colorful personal style and willingness to depart from the formal image traditionally associated with aristocracy.

María Eugenia Brianda Timotea Cecilia Martínez de Irujo y Fitz-James Stuart was born on November 26, 1968, in Madrid, Spain. She was the youngest of six children born to Cayetana Fitz-James Stuart and her first husband, Luis Martínez de Irujo y Artázcoz.

Her five older brothers are Carlos, Alfonso, Jacobo, Fernando, and Cayetano. Her father died from leukemia in 1972, when Eugenia was still a young child. She was subsequently raised within the household of her mother and her mother's second husband, Jesús Aguirre.

Eugenia grew up among the House of Alba's historic residences, including Liria Palace in Madrid and the Palace of Dueñas in Seville. The palaces contained paintings by Goya, Velázquez, Titian, Rubens, and other masters, along with centuries of furniture, tapestries, books, and family archives.

In 1994, her mother transferred the title Duchess of Montoro to Eugenia. The title, which carries the rank of Grandee of Spain, had been held by the Duchess of Alba before being ceded to her daughter.

Eugenia did not inherit the principal title of Duchess of Alba. Following her mother's death in 2014, leadership of the House of Alba passed to Eugenia's eldest brother, Carlos Fitz-James Stuart, who became the 19th Duke of Alba.

Despite her formal title, Eugenia has generally cultivated a less traditional public image. She became a regular figure in Spanish magazines and social coverage but often favored bohemian clothing, contemporary art, music, animals, and informal public appearances over ceremonial aristocratic life.

Eugenia developed a long-running professional relationship with TOUS, initially working in public relations and later designing jewelry collections for the company.

Her collections frequently reflected her personal interests and family history. "Tanuca" was named after her mother's childhood nickname, while "Talismán" was inspired in part by a drawing she created for her daughter. Her "La XIII" collection referenced Francisco Goya's portrait of the 13th Duchess of Alba, incorporating imagery connected to the painting's red ribbon and small dog.

The "Save" collection featured endangered animals including elephants, rhinoceroses, giraffes, lions, monkeys, toucans, and bears. A portion of its sales was donated to the World Wide Fund for Nature.

Eugenia has also applied her artwork to clothing, stationery, decorative objects, and porcelain. In 2026, she collaborated with the French fashion company Antik Batik on "Felicità," a capsule collection featuring floral drawings, embroidery, Andalusian influences, and designs inspired by her mother.

Eugenia has painted since childhood but began devoting more time to art later in life. She returned to painting extensively during the COVID-19 lockdown and subsequently exhibited her work to raise money for charitable organizations.

Her paintings are often colorful and feature flowers, animals, hearts, and other playful motifs. Rather than separating her artwork from her commercial projects, she has adapted the same images for jewelry, fashion, and household products.

Eugenia has supported the Fundación Pequeño Deseo, which helps seriously ill children fulfill personal wishes, as well as environmental and animal-welfare organizations. She has rescued and cared for numerous animals and has made animal imagery a recurring element of her designs.

She also helped commemorate the legacy of her mother by participating in exhibitions and cultural projects about the Duchess of Alba. In 2026, she served as a curator of "Cayetana. Grande de España," an exhibition drawing from family photographs, correspondence, clothing, and archival material.

Eugenia's mother controlled a family fortune valued at roughly $3.5 billion. However, the figure included protected artwork, historic palaces, agricultural land, archives, and properties held through the House of Alba Foundation. The fortune was not divided equally among the duchess's six children as cash.

Before her third marriage in 2011, the Duchess of Alba transferred much of her personal estate to her children while retaining the right to manage and use the assets during her lifetime. Contemporary reports valued each child's allocation at roughly €110 million.

Eugenia's known share included:

• Sa Aufabaguera: The Alba family's longtime vacation estate near Cala Salada on the island of Ibiza.
• La Pizana: An agricultural estate of roughly 600 hectares near Gerena, outside Seville. Her mother originally gave her the property as a wedding gift.
• Financial and family assets: Eugenia also received interests in investments and other portions of her mother's personal estate.

Eugenia did not personally inherit an equal share of the House of Alba's entire $3.5 billion valuation. Liria Palace, Dueñas Palace, Monterrey Palace, much of the art collection, and the historical archives remained connected to the family foundation and the senior branch headed by her brother Carlos.

Based on the reported €110 million allocation, her real estate, and her independent design income, Eugenia's personal net worth is estimated at $100 million. Much of that fortune is tied up in land and inherited property rather than liquid cash.

In October 1998, Eugenia married bullfighter Francisco Rivera Ordóñez at Seville Cathedral. Rivera is the son of bullfighter Francisco Rivera Pérez, better known as Paquirri, and Spanish socialite Carmen Ordóñez.

The wedding was one of Spain's largest society events of the decade. Eugenia and Francisco welcomed a daughter, Cayetana Rivera Martínez de Irujo, known as Tana, in October 1999.

The couple separated and divorced in 2002. They continued sharing responsibility for raising their daughter, who later became a prominent figure in Spanish social and cultural events.

Eugenia later had relationships with several well-known Spanish public figures before beginning a relationship with music executive Narcís Rebollo.

Rebollo has held senior positions in the Spanish music business, including serving as president of Universal Music Spain and Portugal. Eugenia and Narcís married in Las Vegas in November 2017, with Eugenia dressed as Marilyn Monroe and Rebollo dressed as Elvis Presley.

Five years later, they returned to Las Vegas and renewed their vows while dressed as Sandy and Danny from "Grease." The couple divide their time among Madrid, Seville, and Eugenia's inherited properties.