XCF290917 A scene from the Council of Constance, from \'Chronik des Konzils von Konstanz\' (pen and ink on paper) by Richental, Ulrich von (c.1360-1437); Private Collection; (add.info.: Council of Constance 1414-18; held in Konstanz, Germany, to settle the Western Schism; the Greeks agreed to join in Communion with the Church of Rome; here the Catholics teach the Greeks the rites and rituals of the mass;); German, out of copyright.