Richental, Ulrich von (c.1360-1437). Medium: pen and ink on paper. Date: 15th Century. Council of Constance 1414-18; held in Konstanz, Germany, to settle the Western Schism; Martin V (1386-1431), elected in 1417; Sigismund (1368-1437), Holy Roman Emperor, presided over the Council; Provenance: Private Collection. Photographic rights held by The Bridgeman Art Library.