Joseph Mallord William Turner, Britain's greatest and most mysterious artist, was the son of a Convent Garden barber and a woman who died in Bethlehem Mental Hospital. During his lifetime (1775-1851), Turner achieved fame and fortune for a range of work encompassing seascape and landscape, immensely powerful oil paintings and intimate watercolors. His friend and colleague C. R. Leslie remembered him thus: "Turner was short and stout, and had a sturdy, sailor-like walk. He might be taken for the captain of a steamboat at first glance; but a second would find more in his face than belongs in any ordinary mind. There was the peculiar keenness of expression in his eye that is only seen in men of constant habits of observation."