Complex sentence: Roger appears to have come from Stavelot Abbey in the Meuse River region, was active as an artist and author between 1100 and 1107 in St. Pantaleon's church in Cologne, and moved to Helmarshausen Abbey in 1107.
Split into simpler sentences: Roger appears to have come from the Stavelot monastery in the Meuse River region. He was active as an artist and author between 1100 and 1107 in St. Pantaleon's church in Cologne, moving to the monastery in Helmarshausen in 1107.