"This tour offers you a list of the sculptors arranged in approximate chronological order appended by short explanations of the stylistic periods within the indicated time range." Gives you direct access to many of the sculptors working in Europe during the Middle Ages. Not exclusively medieval, but the medieval sections are extensive.

"This tour provides you an overview of Italian painters active in the period 1200-1750. By selecting a local school from the list at left (or from the map, or the zoomed map), a list of artists grouped into time-frames of 50 years will appear. Short history and characterization of all local schools are also given." While not exclusively medieval it is very extensive with maps and details to place the artists in their proper context.