Heyden, John Sigismund, active 1659-1660, Baron

SNAC Cooperative Logo

Social Networks and Archival Context

SNAC is a discovery service for persons, families, and organizations found within archival collections at cultural heritage institutions.

Sponsors

The Andrew W. Mellon Foundation
Institute of Museum and Library Services
National Endowment for the Humanities

Hosts

University of Virginia Library
National Archives and Records Administration