When Bishop Thibaut died, the succeeding prelates, Henri and Geoffrey, continued to give largely of their revenues to the new works, but the progress was slow. Senlis was a small diocese for so big a monument. About the time that the choir was finished, 1180, the sculpture of the central-western portal was set up, a gem of Primary Gothic, though sadly damaged by time. It marks a date in French mediæval sculpture. On the lintel is related the Death of the Virgin and her Assumption, in the tympanum her Coronation. Senlis was the first to use this ordinance which the XIII century frequently repeated; we find it at Chartres' north portal, and at the entrance under the northwest tower of Notre Dame at Paris.
M. Émile Mâle with his usual happy phrasing speaks of the lyric beauty of the lintel stone at Senlis.[50] It was partly inspired by the _Golden Legend_ of the good Bishop James of Genoa, which in its turn had used the apocryphal gospels freely.[51] The legend relates that at the deathbed of Our Lady, the Apostles gathered, and St. John cautioned them: "Be careful when she is dead that no one weeps, lest the people, seeing our tears, be troubled, and say, 'They fear death, who preach the Resurrection.'" For three days Our Lady rested in her tomb in the valley of Jehoshaphat, then came her Divine Son, with angels, singing the Canticle of Canticles, to escort her to Paradise. The old sculptor of Senlis has depicted the touching reverence with which the angels bend, to lift from the tomb their future Queen of Heaven. Their gesture of eager love is one of the exquisitely delicate conceptions of mediæval sculpture.
While they were carving the west portal there came to Senlis a touching figure, the young mother of the future Louis VIII, Isabelle, daughter of Baudouin V of Flanders, who claimed direct descent from Charlemagne; through her the blood of the Carolingian line passed into the third dynasty of France. She was to die, at nineteen, almost repudiated by Philippe-Auguste, because her people declined to support one of his projects. In Senlis Cathedral this gentle grandmother of St. Louis walked barefooted, candle in hand, beseeching assistance from the Mother of God with such humility that the beholders wept. She founded a chapel in the cathedral.