Founded by Thomas S. Kaplan and Daphne Recanati Kaplan, The Leiden Collection is among the largest and most important collections of seventeenth-century Dutch art in private hands. The Online Catalogue of The Leiden Collection, edited by Arthur K. Wheelock Jr. and Elizabeth Nogrady with Caroline Van Cauwenberge, explores the Collection through scholarly entries of more than 175 paintings and drawings, artist biographies, and essays. With contributions from more than a dozen leading scholars, the catalogue illuminates the major artists and themes of the Collection, which represents one of the richest periods of artistic creativity in European Art.