This document provides information about artworks from the Italian Renaissance and Northern Renaissance in the 15th century. It summarizes key works such as Mantegna's Dead Christ which uses unusual coloring and bold foreshortening. It also describes Ambrogio Lorenzetti's Allegory of Good Government painting done in the hall of Siena depicting the security and thriving community of the ideal republic. Additionally, it mentions the Ghent Altarpiece by Jan van Eyck which uses extreme realism and detailed surfaces in the figures and backgrounds.