1. Overview
Princess Isabel Alfonsa of Bourbon-Two Sicilies, also known as Isabel Alfonsa María Teresa Antonia Cristina Mercedes Carolina Adelaida Rafaela de Borbón-Dos Sicilias y Borbón, was a prominent figure from the European nobility born on October 16, 1904, and who passed away on July 18, 1985. By birth, she was a princess of the House of Bourbon-Two Sicilies, a branch of the wider House of Bourbon. She was later granted the title of Infanta of Spain. Through her marriage to Count Jan Kanty Zamoyski, she became a member of the Polish House of Zamoyski. Her life was marked by her royal lineage, significant family events, and a period of exile, reflecting the political upheavals of the 20th century. She was a niece of Alfonso XIII of Spain and a maternal aunt of Juan Carlos I of Spain.
2. Life
Princess Isabel Alfonsa's life spanned most of the 20th century, witnessing significant political and social transformations. Born into a royal family, her early years were shaped by the dynamics of the Spanish monarchy, while her later life involved marriage, raising a family, and navigating the challenges of exile.
2.1. Early Life and Family
Isabel Alfonsa was born on October 16, 1904, at the Royal Palace of Madrid in Spain. She was the third child and only daughter of Prince Carlos of Bourbon-Two Sicilies and his first wife, Mercedes, Princess of Asturias. Her mother, Mercedes, was the heir presumptive to the Spanish Throne from September 11, 1880, until October 17, 1904. Tragically, Mercedes died just one day after Isabel Alfonsa's birth due to complications from labor. Isabel Alfonsa's maternal grandparents were Alfonso XII of Spain and Maria Christina of Austria. Through her father, she was a paternal great-granddaughter of Ferdinand II of the Two Sicilies. She was also a grand-niece of King Alfonso XIII of Spain, and thus a maternal great-aunt of King Juan Carlos I of Spain.
Isabel Alfonsa was baptized at the Royal Palace of Madrid on October 24, 1904. She was given the full baptismal name Isabel Alfonsa María Teresa Antonia Cristina Mercedes Carolina Adelaida Rafaela. Her godparents were her uncle, King Alfonso XIII of Spain, and Infanta María Isabel Francisca de Asís.


Some time after her birth, her brother, Fernando María, passed away in San Sebastián. In 1907, her father, Prince Carlos, remarried to Louise of Orléans, a daughter of Philippe, Count of Paris and María Isabel of Orléans. From this second marriage, Prince Carlos and Louise had one son and three daughters. One of their daughters, María de las Mercedes of Bourbon-Two Sicilies, would later become the paternal grandmother of Felipe VI of Spain. Despite being a maternal grandchild, Isabel Alfonsa was granted the title of Infanta of Spain by her uncle, King Alfonso XIII, a special designation reflecting her close ties to the Spanish royal family.
2.2. Marriage and Issue
On March 9, 1929, Isabel Alfonsa married her first cousin once removed, Count Jan Kanty Zamoyski, in Madrid. Jan Kanty, born in 1900, was the seventh child and third son of Count Andrzej Zamoyski and Princess Maria Carolina of Bourbon-Two Sicilies. The wedding was a significant event, with Isabel Alfonsa wearing a white charmeuse wedding dress, adorned with a white veil and an orange blossom wreath. The ceremony was attended by numerous relatives from both the bride's and groom's families.


Isabel Alfonsa and Jan Kanty had four children:
- Count Karol Alfons Zamoyski (born October 28, 1930 - died October 26, 1979)
- Countess Maria Krystyna Zamoyska (born September 2, 1932 - died December 6, 1959)
- Count Józef Michal Zamoyski (born June 27, 1935 - died May 22 or 23, 2010)
- Countess Maria Teresa Zamoyska (born April 18, 1938)

From 1929 to 1945, the family resided in Stará Ľubovňa, a town in Czechoslovakia. This period marked a relatively stable time in their lives, before the onset of significant political changes in Europe.
2.3. Exile and Later Life
In 1945, the political landscape in Eastern Europe drastically changed with the advance of the Red Army. This forced Isabel Alfonsa and her family to flee Czechoslovakia and seek refuge in her homeland, Spain. They settled in Valencina de la Concepción in the Seville region. This period of exile was a major turning point, forcing the family to adapt to new circumstances away from their established life in Czechoslovakia.
In 1961, Isabel Alfonsa became a widow with the death of her husband, Count Jan Kanty Zamoyski. Following this loss, she chose to live in a convent, dedicating her later years to a more contemplative life. This decision reflected a personal turn towards spiritual solace in her final decades.
3. Death
Princess Isabel Alfonsa of Bourbon-Two Sicilies died on July 18, 1985, at the age of 80, in Madrid, Spain. Her passing occurred during the reign of her nephew, Juan Carlos I of Spain. She was laid to rest in the Panteón de Infantes (Pantheon of the Infantes) at El Escorial, a historic royal burial site in Spain, reserved for members of the Spanish royal family and their close relatives.
4. Titles and Honours
Isabel Alfonsa held various titles by birth, grant, and marriage, reflecting her distinguished lineage and royal connections. She also received several honours during her lifetime.
4.1. Titles
Isabel Alfonsa was born a Princess of Bourbon-Two Sicilies. This title stemmed from her paternal lineage, belonging to the House of Bourbon-Two Sicilies, a cadet branch of the Spanish Bourbons that ruled the Kingdom of the Two Sicilies. In addition to her birthright, she was granted the personal title of Infanta of Spain by her uncle, King Alfonso XIII of Spain. This was a notable distinction, as the title was typically reserved for children and male-line grandchildren of the reigning Spanish monarch. Upon her marriage to Count Jan Kanty Zamoyski in 1929, she acquired the title of Countess Jan Kanty Zamoyski, becoming a member of the ancient and prominent Zamoyski family of Poland.
4.2. Honours
Isabel Alfonsa received several prestigious honours throughout her life, recognizing her status within European royalty and nobility. These included:
- Dame Grand Cross of Justice of the Sacred Military Constantinian Order of Saint George
- Dame of the Order of Queen Maria Luisa
4.3. Arms
Princess Isabel Alfonsa's heraldry evolved throughout her life, reflecting her different marital and widowhood statuses. Her coat of arms visually represented her royal heritage and her union with the Zamoyski family.
5. Ancestry
Isabel Alfonsa's ancestry connects her to several prominent European royal houses, including the Bourbons of Spain and the Two Sicilies, and the House of Habsburg-Lorraine.
Her immediate ancestors were:
- Her father, Prince Carlos of Bourbon-Two Sicilies (1870-1949), was the son of Prince Alfonso, Count of Caserta, and Princess Maria Antonietta of Bourbon-Two Sicilies.
- Her mother, Mercedes, Princess of Asturias (1880-1904), was the daughter of Alfonso XII of Spain and Maria Christina of Austria.
Tracing her lineage further back to her great-grandparents:
- Her paternal grandparents were Prince Alfonso, Count of Caserta (1841-1934) and Princess Maria Antonietta of Bourbon-Two Sicilies (1851-1938).
- Alfonso was the son of Ferdinand II of the Two Sicilies and Archduchess Maria Theresa of Austria.
- Maria Antonietta was the daughter of Prince Francis, Count of Trapani and Archduchess Maria Isabella of Austria.
- Her maternal grandparents were Alfonso XII of Spain (1857-1885) and Maria Christina of Austria (1858-1929).
- Alfonso XII was the son of Infante Francisco de Asís of Spain and Isabella II of Spain.
- Maria Christina was the daughter of Archduke Karl Ferdinand of Austria and Archduchess Elisabeth Franziska of Austria.
Further extending her lineage to her great-great-grandparents:
- The parents of Ferdinand II of the Two Sicilies were Francesco I of Two Sicilies and María Isabel of Spain.
- The parents of Archduchess Maria Theresa of Austria were Archduke Karl of Austria, Duke of Teschen and Henriette Alexandrine of Nassau-Weilburg.
- The parents of Prince Francis, Count of Trapani were Francesco I of Two Sicilies and María Isabel of Spain.
- The parents of Archduchess Maria Isabella of Austria were Leopold II of Tuscany and Maria Antonia of Two Sicilies.
- The parents of Infante Francisco de Asís of Spain were Francisco de Paula of Spain and Luisa Carlotta of Two Sicilies.
- The parents of Isabella II of Spain were Fernando VII of Spain and Maria Cristina of Two Sicilies.
- The parents of Archduke Karl Ferdinand of Austria were Archduke Karl of Austria, Duke of Teschen and Henriette Alexandrine of Nassau-Weilburg.
- The parents of Archduchess Elisabeth Franziska of Austria were Joseph of Austria and Maria Dorothea of Württemberg.