Art Libraries (fully available online as PDF), which contains material on Francesco di Giorgio (see index) 1439 births 1501 deaths 15th-century Italian architects 15th-century Italian painters 15th-century Italian writers 16th-century Italian painters 16th-century Italian writers 16th-century male writers Italian architecture writers Italian Renaissance architects Italian Renaissance painters Italian male painters Italian male non-fiction writers Quattrocento painters Painters from Siena Medieval military writers