Diego Laynez, Spanish Jesuit theologian (b. 1512)
Several spellings of his names (James, Jacob; Laines, Laynez, Lainez) are in use and some of them can be found in other Wikipedia articles
Diego Laynez, S.J. (sometimes spelled Laínez) (Spanish: Diego Laynez), born in 1512 (Almazán, Spain) and died on 19 January 1565 (Rome), was a Spanish Jesuit priest and theologian of Jewish descent, and the second Superior General of the Society of Jesus.