www.artist-biography.info

Anchor text: Biography from Artist-Biography.info

Wikipedia: Fra Bartolomeo

Anchor text: Andrea Verrocchio: 16th-century biography by Vasari

Wikipedia: Andrea del Verrocchio

Anchor text: Andrea Verrocchio - Biography and Gallery of Art

Wikipedia: Desiderio da Settignano

Anchor text: Giorgio Vasari's ''Vita''

Wikipedia: Pontormo

Wikipedia: Giulio Romano

Anchor text: Artist Biography site

Wikipedia: Michelozzo