The Cranachs have left behind extensive artistic work. Professor Gunnar Heydenreich undertook a research project whose results are on the internet:
The Cranach Digital Archive (cda) is an interdisciplinary and interinstitutional research resource with art historical, art technological and scientific information about the paintings of Lucas Cranach the Elder (ca. 1472-1553) and his workshop[…] Currently, the archive holds information about 400 paintings with 5000 illustrations and documents of 19 partner institutions as well as 1600 literature records. The research project started in 2009 and is now in its second stage (2012-2014). The goal of this stage in the project is to extend the existing network, develop the infrastructure further and increase the content[], to lay the foundation for an innovative, comprehensive and common source of knowledge about Lucas Cranach and his workshop that distinguishes itself from the traditional type of a catalog of works… The “Cranach Digital Archive” is an initiative of the Foundation Museum Kunstpalast, Düsseldorf and of the institute for Restoration and Conservation Science of the University for Applied Science of Cologne in cooperation with nine founding partners, 17 partner institutions and other project participants. The project is funded by the Andrew W. Mellon Foundation.