13 torthaí laistigh de Duine Petrus Riga

Petrus de Riga

Library of the Wroclaw University

Petrus Riga

National Library of the Czech Republic

Petrus Riga

National Library of the Czech Republic

Library of the Wroclaw University

Bellesarius

Leiden University Libraries

University Library Freiburg

Petrus Riga

Bruges Public Library

Petrus de Riga

Opera Institute of the Italian Vocabulary

Pierre Riga (about 1140-1209); Piotr Damiani (saint; 1007-1072)

Library of the Wroclaw University

National Library of the Czech Republic

Petrus Riga; Aegidius Parisiensis; Pseudo-Allexander de Villa Dei

National Library of the Czech Republic

Hélinand

Bodleian Libraries, University of Oxford

Petrus Riga

Bodleian Libraries, University of Oxford