Piero della Francesca is one of the most enigmatic artists of the 15th century. His grave solid figures set in a timeless landscape and lit by a clear light, encapsulate the harmony of man and his world that lay at the heart of Italian Renaissance thought. But in effect his paintings are a perfect fusion of the art of the North and that of the South, of light and logic, which reflect his native countryside whilst yet conveying a spirituality that reaches out over time and boundaries. Whether working in the service of the Church or private patrons, his paintings radiate a serenity which transcends time.