This document lists important artworks and artists from the Proto-Renaissance period in Italy, including Cimabue's Santa Trinita Madonna from 1280-90, several pieces by Giotto di Bondone from around 1280 to 1305 demonstrating a shift towards realism, Duccio's Maestà altarpiece from 1308-11, Simone Martini's Annunciation from 1333, and Ambrogio Lorenzetti's Presentation of Jesus in the Temple from 1342, signaling a move towards more naturalistic styles that foreshadowed the Renaissance.