I asked Gemini and got the below answer.
Saint Josaphat (from the legend of Barlaam and Josaphat) is indeed a Christianized version of the story of Buddha.
Rome included Saint Josaphat in the Roman Martyrology (the Catholic Church’s official calendar of saints) believing he was a historical Indian prince who converted to Christianity. They did not realize that the story they were venerating was actually a heavily modified adaptation of Siddhartha Gautama’s life.
How the Buddha Became “Saint Josaphat”
The life of Buddha traveled along the Silk Road over a period of centuries, slowly shifting in language and theology as it was translated across different cultures:
- Sanskrit: The story originates with the life of Siddhartha Gautama, titled Bodhisattva.
- Persian & Arabic: In Middle Persian and Arabic, Bodhisattva was transliterated as Budasaf or Yudasaf.
- Georgian & Greek: As the story moved through Christian communities in the Middle East, Yudasaf became Iodasaph or Ioasaph, and the plot was adapted to turn the prince into a devout Christian convert guided by a hermit named Barlaam.
- Latin: By the 11th century, the Greek narrative was translated into Latin, where Ioasaph became Josaphat.
The Plot Parallels
The Christian legend closely mirrors the biography of the Buddha:
- The Prophecy: A king in India hides his young son in a secluded palace to protect him from the outside world because astrologers foretold he would abandon worldly power for spiritual life.
- The Encounters: The prince leaves the palace, sees suffering, and decides to renounce his wealth.
- The Transformation: In the Christian version, Josaphat meets the Christian hermit Barlaam, converts to Christianity, converts his entire kingdom, and retreats into the desert to live as an ascetic.
Recognition in Catholic Tradition
- 1583: Pope Gregory XIII formally included Saints Barlaam and Josaphat in the official Roman Martyrology, establishing their feast day as November 27.
- 1859–1860: Modern scholars (such as Édouard René de Laboulaye and Felix Liebrecht) definitively traced the linguistic and narrative path from Bodhisattva to Josaphat.
- Modern Status: Today, Barlaam and Josaphat are recognized as legendary figures rather than historical individuals, and they are no longer included in the modern Catholic liturgical calendar.
Note on a different Saint Josaphat: Be careful not to confuse this legendary saint with Saint Josaphat Kuncevyc (1580–1623), a real, historical Ukrainian Eastern Catholic archbishop and martyr whose feast day is celebrated on November 12.
Diem ‘Richard’ Nguyen
Liên Minh Bảo Hiến Mỹ Gốc Việt
Vietnamese American Conservative Alliance (VACA)
https://freedom-vaca.org/vaca-blog-tieng-viet-nam/
https://freedom-vaca.org/vaca-main-blog-english-articles/