books

Books about Guillielmus:

booksBibliotheca Te Waterana, Sive Catalogus Librorum Selectorum ... Quae ... Collegit ... Jona Guillielmus Te Water... by Anonymous (Oct 7, 2011)

booksPinxit Guillielmus: Il restauro della croce di Sarzana (2001)

wiki

Wiki information Guillielmus:

Guillielmus de Grof
Visual Artist, Deceased Person, Person