"Brilliant: Cartier in the 20th Century" is an exhibit at the Denver Art Museum. From http://en.wikipedia.org/wiki/Cartier_(jeweler): "Louis-François Cartier founded Cartier in Paris in 1847 when he took over the workshop of his master. In 1874, Louis-François' son Alfred Cartier took over the company, but it was Alfred's sons Louis, Pierre and Jacques, who were responsible for establishing the brand name worldwide."