Nicolas Antonio, a Spanish bibliographer of Flemish origin, born at Seville in 1617, died in Madrid in 1684. He lived in Rome 20 years (1659-79) as agent of Philip IV. and in other official capacities, and collected a library there said to have been only second in importance to that of the Vatican. His fame rests on his Bibliotheca Hispana Nova and Bibliotheca Hispana Vetus, which comprehend all the literary names of Spain, and in some cases of Portugal, from the 1st century to nearly the end of the 17th. In many instances biographies.are given of the various authors.