From the Middle Ages through the Renaissance painters worked for the church and a wealthy aristocracy. Beginning with the Baroque era artists received private commissions from a more educated and prosperous middle class. The idea of "art for art's sake" began to find expression in the work of the Romantic painters like Francisco de Goya, John Constable, and J.M.W. Turner. During the 19th century the rise of the commercial art gallery provided patronage in the 20th Century. Western painting reached its zenith in Europe during the Renaissance, in conjunction with the refinement of drawing, use of perspective, ambitious architecture, tapestry, stained glass, sculpture, and the period before and after the advent of the printing press. Following the depth of discovery and the complexity of innovations of the Renaissance the rich heritage of Western painting (from the Baroque to Contemporary art) continues into the 21st century.