sentences:  The most important works included twelve rectangular frescos, in highly decorative sculptured frames, in the Gallery of François I (1533–1539).Following the death of Francis I in 1547, his successor King Henry II continued to enlarge and embellish the chateau.The architects Philibert Delorme and Jean Bullant extended the east wing of the lower court, and decorated it with the first famous horseshoe-shaped staircase.