Summa Theologica is a theological work written by Francesc Eiximenis in Latin possibly at the beginning of the 15th century. It belongs to the genre of the summae, that represented the highest point of the medieval theological thought.
Only some parts have been preserved. They were found in the archive of the cathedral of Valencia by the Valencian Franciscan León Amorós. He also transcribed them[1] and published them in the review Archivum Franciscanum Historicum in 1959.[2]
The most important part deals with predestination. Eiximenis' aim was to write about it in the Fourth Book of the Christian (this book was projected but not written). The other matters of the preserved parts are the following:
León Amorós arrives to the conclusion that this Summa was written at the same time as the Vida de Jesucrist (Jesus Christ's life), owing to the constant references that in this work are made to the Summa, and because the references to the Summa only appear in the Vida de Jesucrist, and not in any other of Eiximenis' work.[3] And the Vida de Jesucrist was concluded by Eiximenis at the beginning of the 15th century.[4]
Considering the references that are made in the Vida de Jesucrist, L. Amorós deduces this hypothetical content and structure:
There is another reference, but without specifying the book, to the sacrament of baptism. And finally chapter 53 of the 7th treatise of the Vida de Jesucrist refers to the Summa Theologica, but without specifying a concrete book regarding the matter of usury (Valencia. BUV. Ms. 209, f. 200r).
According to these data L. Amorós deduces that this summa would consist in seven books.[5]