Portraits of Spain's 8-year-old Infanta Margarita and her brother, painted in 1659, were the last works completed by which artist?

At 1,645 feet deep, which lake on the California-Nevada border is one of North America's deepest? Which French king supposedly declared, "L'état, c'est moi" ("I am the state")? In 1653, which Dutch settlement, later renamed New York City, was incorporated as a city? Which classic by Izaak Walton, celebrating the art of fishing, was published in 1653? In 1666, a great fire destroyed much of which capital city? The word "pandemonium", the capital of Hell, was coined in which 1667 epic poem? 1669 and 1852 were bad years to vacation near which Sicilian volcano? In 1988, 167 men died in the Piper Alpha oil platform explosion in which sea off Britain?