Book Review: Security and Credit in Roman Law. The Historical Evolution of Pignus and Hypotheca by Hendrik L. E. Verhagen. - European Review of Private Law View Book Review: Security and Credit in Roman Law. The Historical Evolution of Pignus and Hypotheca by Hendrik L. E. Verhagen. by - European Review of Private Law Book Review: Security and Credit in Roman Law. The Historical Evolution of Pignus and Hypotheca by Hendrik L. E. Verhagen. 32 4 European Review of Private Law