11 torthaí laistigh de Duine Gerard Zerbolt of Zutphen

University Library Freiburg

University Library Freiburg

Andreae, Ioannes (around 1270-1348); Henricus de Ratisbona

Library of the Wroclaw University

Innsbruck: Universitäts- und Landesbibliothek Tirol

Gerard Zerbolt van Zutphen

Ghent University Library

Gerardus de Zutphania.

Complutense University of Madrid

Leiden University Libraries

Library of the Wroclaw University

Gerard van Zutphen; Amerbach, Johann

Museum Catharijneconvent

University Library Freiburg

Gerardus de Zutphania.

Complutense University of Madrid