During his lifetime Pierre-Jean Mariette (1694–1774) assembled one of history’s finest and most renowned collections of drawings. He amassed over nine thousand sheets that were dispersed after his death, and today works from his collection are found in museums and private collections around the world, many of them still in Mariette’s distinctive blue mounts. Despite his importance as a collector and connoisseur, he has never before been the subject of an exhibition in the United States.