Original: Joanot Martorell (Gandia 1413   1468) was a Valencian knight and the author of the novel Tirant lo Blanch, which is written in Valencian (Martorell calls it "the Valencian vernacular" "vulgar llengua valenciana" spoken in the Kingdom of Valencia, nowadays considered to be a Catalan variant).
Simplified: Joanot Martorell (1413   1468) was the Valencian author of the novel Tirant lo Blanch, which is written in the Catalan language (Martorell calls it "the Valencian vernacular" "vulgar llengua valenciana" used in the Crown of Aragon).