Giuseppe di Cattivo
From Tardis Wiki, the free Doctor Who reference
Giuseppe di Cattivo was a contemporary of Leonardo da Vinci and a fellow artist, as well as his neighbour. He was renowned for the strangeness and morbosity of his paintings. At one point in his life he found a sentient metoirite and used it as a material for his pigments. Using this paint he created his masterpiece, called The Abomination, and lent some of it to da Vinci for one copy of the Mona Lisa (the copy that would eventually be found in the Louvre, Paris). The Abomination however was to terrible to lay eyes on without going mad, and di Cattivo locked the painting in a vault with a puzzle box before succumbing to madness.