Juan Domingo de Borja y Doncel

Juan Domingo de Borja y Doncel (b. circa 1357 - d. ?) was a Spanish noble from Aragonese Valencia in the town of Borja, Zaragoza. He held the title over the Señor de la Torre de Canals. He was a member of the prestigious House of Borja.

Juan Domingo made his fortune in Xàtiva, where he was involved in local commerce, specifically in the sugar trade. He was son of Domingo I de Borja and Caterina whose family name is not known.

On 2 February 1375, a Domingo de Borja, believed to be the father of Calixtus III, testified in a document as a citizen of Xàtiva.

In 1404, Juan Domingo was recorded as having been granted the title of Sobreguarda of the frontiers of the Kingdom of Castile by King Martin of Aragon

In 1408, Domingo's son, Alfonso de Borja y Cavanilles (future Pope Calixtus III), granted his father the power to collect the pension of a censor in Vall de Pego.

Juan Domingo de Borja married Francina Llançol, also of Valencia, and the couple gave birth to one boy and four girls:

Florida International University (1998). "The Cardinals of the Holy Roman Church". Salvador Miranda. 

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