Master of Frankfurt art links 

Master of Frankfurt at the Detroit Institute of Arts, Michigan

Kunsthistorisches Museum Databank, Vienna (in German)  

Mauritshuis Royal Picture Gallery, The Hague

Mauritshuis Royal Picture Gallery, The Hague   NEW!
Great scans of Mauritshuis paintings, from the 'Memory of the Netherlands' project

Master of Frankfurt at the National Gallery of Art, Washington D.C.
Saint Anne with the Virgin and the Christ Child, ca.1511/15

Museu Nacional d'Art de Catalunya, Barcelona
Triptych of the Baptism of Christ

National Museums Liverpool, UK
The Holy Family with Music Making Angels

Norton Museum of Art, West Palm Beach, Florida - Provenance Research
The Lamentation

Queensland Art Gallery, Brisbane, Australia
Virgin and Child with Saints, ca.1496

San Diego Museum of Art, California
Requires Flash: Click on "Artist Index", then on "F"

The Jewish Museum, New York City
Painting from the exhibition Reclaimed: Paintings from the Collection of Jacques Goudstikker

Thyssen-Bornemisza Museum, Madrid   NEW!
- to switch to English, scroll to the bottom of the page and click "English Version"
- images are zoomable; click on the "expand" icon below the detail image
- you can zoom in via the mouse scroll wheel, then click the image and drag it around

 
National Art Databases and Museum Inventories:

Flemish Art Collection Database, Belgium (in Dutch)  

 

Aiwaz Panopticon

 

Grove Dictionary of Art Online (excerpt)  

Union List of Artist Names (Getty Museum)  
Reference sheet with basic information about the artist and pointers to other references.

Oxford Dictionary of Art (eNotes)   NEW!