Thomas S. Kaplan is an American entrepreneur and investor, environmentalist and art collector. Dr. Kaplan and his wife, Daphne Recanati Kaplan, began to collect the art of the Dutch Golden Age in 2003. Within a few years they established The Leiden Collection, named in honor of Rembrandt’s birthplace. Their commitment to Rembrandt and his circle soon evolved into one of the most important collections of seventeenth-century Dutch art in private hands. The Kaplans’ collecting began with Mrs. Kaplan’s early engagement with twentieth century modernist design, an area in which she assembled one of the finest collections of the great French and Italian masters of the era, including Jean Prouvé, Alexander Noll, Charlotte Perriand and Carlo Mollino.