  The known details of Albo’s life are sparse. As far as we know, he was born in Christian Spain in the crown of Aragon around 1380, and died in the crown of Castile around 1444. In documenting the highlights of his career, we should first mention his period of study in the school of Hasdai Crescas in Saragossa. Further, in 1413–1414 he played a dominant role in the Disputation at Tortosa, a major public polemic between the Jewish convert to Christianity Geronimo de Santa Fe (formerly Joshua Lorki), who represented the pope, and delegates from many Jewish communities in Christian Spain. In this debate, Albo represented the Jewish community of Daroca in Aragon (Graetz 1894, 179–220; Baer 1961, 170–232; Rauschenbach 2002, 11–47). After this community was decimated in 1415, he moved to the town of Soria in Castile (Gonzalo Maeso 1971, 131; Motis Dolader 1990, 148). But Albo is mainly known for his philosophical treatise, Sefer ha-‘Ikkarim, which he finished around 1425. Aside from acting as a philosopher and spiritual leader, Albo served as a preacher and possibly also as a physician. Apparently, Albo had a command of Spanish and Latin in addition to Hebrew, the language of Sefer ha-‘Ikkarim (Husik 1928–30, 67), but we cannot determine his level of fluency in Arabic.