The Alba Bible is a 1430 illuminated manuscript translation of the Old Testament made directly from Hebrew into Mediaeval Castilian, one of the earliest known translations into a Romance language. The translation was carried out under the direction of Moses Arragel, rabbi of the Jewish community of Maqueda in the Spanish province of Toledo, at the behest of Don Luis de Guzmán, Grand Master of the military-religious Order of Calatrava.
During the 15th century, many people within Spanish society held hostile views toward Jews. In the aftermath of a series of anti-Semitic riots centered in Madrid, Don Luis de Guzmán believed that he could help heal the rift and build a bridge of understanding between Christians and Jews by commissioning a Castilian translation of the Old Testament from the original Hebrew, accompanied by commentary from Jewish scholars interpreting the text of their holy book.
On April 5, 1422, Don Luis de Guzmán initiated his project by sending a letter to rabbi Moses Arragel inviting him to compose "vna biblia en rromançe, glosada e ystoriada." It is not known what convinced rabbi Arragel to accept as he initially demurred in an extensive reply letter to Guzmán. Nevertheless, eight years later the bible was completed.
From 1492, the year in which the Alhambra Decree issued mandating the expulsion of all Jews from Spain, until 1622, when it resurfaced in the Palace of Liria owned by the House of Alba, the whereabouts of the Alba Bible were unknown. In 1922 an illustrated facsimile edition of 300 copies was published by the scholar Antonio Paz y Meliá. In 1992, to commemorate the 500th anniversary of the expulsion, Mauricio Hatchwell Toledano, President of the Fundacion Amigos de Sefarad published 500 copies in an exact facsimile edition, one of which was given to Juan Carlos I of Spain, the reigning King of Spain.