Joseph Mallord William Turner known contemporarily as William Turner, was an English Romantic painter, printmaker and watercolorist. He is known for his expressive colorizations, imaginative landscapes and turbulent, often violent marine paintings. Intensely private, eccentric and reclusive, Turner was a controversial figure throughout his career. He did not marry, but fathered two daughters, Eveline (1801–1874) and Georgiana (1811–1843), by his housekeeper Sarah Danby. He became more pessimistic and morose as he got older, especially after the death of his father, after which his outlook deteriorated, his gallery fell into disrepair and neglect, and his art intensified. He lived in squalor and poor health from 1845, and died in London in 1851 aged 76. He left behind more than 550 oil paintings, 2,000 watercolors, and 30,000 works on paper. He had been championed by the leading English art critic John Ruskin from 1840, and is today regarded as having elevated landscape painting to an eminence rivaling history painting.