The interior of Notre-Dame is imposing, though somewhat heavy in character; and although the nave and choir were sixty years in construction, there is scarcely any difference in style, except in the details. There is a certain clumsiness about the great round shafts of the nave, but the carving upon the angles of the plinths and of the capitals helps to relieve this effect. Most of the capitals are ornamented with examples of the flora of Parisian fields. At the west end is a gallery now occupied by the great organ, but which formerly was the stage upon which miracle-plays were performed. The choir is by far the most beautiful part of the church; and being filled with stained glass, it has not that painfully cleaned-up appearance which is the result of over-restoration. Some parts of it, the bays which separate the side-aisles from the crossings, are of the 14th century; and the little Angels blowing trumpets which surmount the archivolt are beautiful specimens of sculpture of that period. The capitals of some of the choir columns being the oldest in the church (the early part of the 12th century) are very rich in the quaint style of decoration delighted in by Mediæval artists—masses of foliage, with heads of grotesque animals peeping out, and biting off the leaves and flowers. One capital (between the seventh and eighth southern chapels) is interesting as showing the transition between the use of personages and animals, and that of foliage only, which was customary in the later period. The subject is very unecclesiastical, as was so often the case in the 12th and 13th centuries—two Harpies, male and female, with human heads and bird bodies, issuing out of the foliage. Much of this is treated in the most realistic manner, and we find specimens of the oak, the ivy and the trefoil.
In many of the chapels are double piscinæ. From one, the water in which the priest washes his hands before mass, is ejected by a pipe; from the other, used after mass, the water descends into the ground. They are both ornamented with carved canopies.
The Lady chapel, or chapel of the Compassion, and the two on either side, are painted and gilded, a good deal of the old colouring having survived as a guide. There is some good carving, and in front of the tabernacle hang seven lamps of elegant design. These, added to the beauty of the old stained glass, make this end of the church by far the most beautiful part.[114] The chapel also contains an inscription, bearing the name of the founder, bishop Simon Matiffas de Bucy, who died in 1304. In the chapel of S. George is the fine marble statue of the martyred archbishop Darboy, shot in 1871 by the Communists.
The alto-reliefs alluded to above, by Jean Ravy and Jean le Bouteiller, are supported upon an arcade of clustered columns and pointed arches fixed against the back of the stalls. Formerly they were continued across the jubé and all around the choir; but unfortunately, when the sanctuary gates were constructed, these sculptures were sacrificed. The subjects are: 1, the Visitation; 2, the Appearance of the Star of Bethlehem to the Shepherds; 3, the Nativity; 4, the Adoration of the Magi; 5, the Massacre of the Innocents; 6, the Flight into Egypt; 7, the Presentation in the Temple; 8, Christ disputing with the Doctors; 9, the Baptism of Christ; 10, the Marriage in Cana; 11, the Entry into Jerusalem; 12, the Last Supper; 13, Christ washing S. Peter's Feet; 14, the Mount of Olives, The mysteries of the Passion and Resurrection were on the jubé, the destruction of which we owe to the Cardinal de Noailles. On the South side the subjects are of later date (14th century): 1, Christ appearing to the Magdalen; 2, to the Three Maries; 3, the Apostles running to the Sepulchre; 4, the Journey to Emmaüs; 5, Christ appearing to the Disciples; 6, to S. Thomas; 7, to S. Peter on the Sea of Tiberias; 8, another Appearance to the Disciples; 9, the Charge to preach the Gospel in all Lands. Jean Ravy was represented kneeling with joined hands in the last of these alto-reliefs. The whole was finished by Jean le Bouteiller in 1351; and it is recorded that a part was a votive offering in honour of God, of the Virgin Mary, and of Monseigneur S. Étienne, given by Guillaume de Melun, Archbishop of Sens—one of two bishops of the name who occupied the see in 1317-29 and 1344-96 respectively. The sculptures are all coloured and gilt, and a very good cast of them may be seen at the Crystal Palace.
The choir remained intact until 1638, when Louis XIII., putting his kingdom especially under the protection of the Blessed Virgin, registered that unfortunate vow that he would consecrate the sanctuary of Notre-Dame to the fulfilment of it. "Afin que la postérité ne puisse manquer à suivre nos volontés à ce sujet, pour monument et marque incontestable de la consécration présente que nous faisons, nous ferons construire de nouveau le grand autel de l'église cathédrale de Paris, avec une image de la Vierge qui tienne entre ses bras celle de son précieux fils, descendu de la croix, et où nous serons représentés aux pieds du fils et de la mère, comme leur offrant notre couronne et notre sceptre." Louis XIII. died in 1643, before he was able to carry out his marvellous design; but unfortunately, his son, Louis XIV., was only too ready to embellish buildings in the miserable taste of his time, and so the altar is disfigured by a Descent from the Cross by Nicolas and Guillaume Coustou, and a pair of kneeling kings (the 13th and 14th Louis) by Coysevox. In themselves these sculptures are fine examples of the art of the period, but they and the eight bronze Angels by Cayot, Vanclève, Poirier, Hurtrelle, Nagnier and Anselme Flamen, are all equally out of place in a 13th century church. The bas-reliefs of the altar were by Vassé, and Du Goulon was the sculptor of the beautiful woodwork representing scenes from the life of the Virgin. The altar was destroyed in 1793, in order to erect a symbolic "montagne" upon "les pompeux débris de l'antique imposture." The present one was reconstructed in 1803, the Entombment, in gilt copper, from designs by Vanclève, being conveyed from the chapelle des Louvois, in the old church of the Capuchins in the Place Vendôme. The cross and candelabra belonged to the cathedral of Arras before the Revolution; and the beautiful bronze lectern, as exquisite in design as in workmanship, is signed and dated, "Duplessis 1775." The statue of the Virgin, on a pillar at the entrance of the choir, had the reputation of working miracles. It was thrown down at the Revolution, but was found later at S. Denis and replaced in Notre-Dame. Such is the history of the statue, but whether it is the identical figure, it is impossible to say. In any case it is mainly of the same date as the church, which cannot be said of the reliquaries in the treasury, that are also supposed to have survived the Revolution.
The choir is raised three steps above the transepts. The two arches which separate the side aisles from the crossings show evidences of a later style. As we have seen, many sculptures were saved by the deputy Chaumette, and by Alexandre Lenoir, as works of art worthy of preservation; but unfortunately, reliquaries were of more value as metal, and most of them passed through the melting-pot into coinage for the bankrupt National treasury. The reliquaries shown at the cathedral are mostly modern imitations of those which were formerly in the Ste. Chapelle. One, however, is said to be the veritable Croix Palatine. This is a double-armed gold cross of Byzantine workmanship, formerly belonging to S. Germain-des-Prés, to which church it was left in 1684 by Anne of Cleves, princess of Mantua and of Montferrat, widow of Edouard von Baiern. The prince received it from Jean Casimir, King of Poland, when he took refuge in France; it having been given to a King of Poland in the 12th century by Manuel Comnenus, Emperor of Constantinople. The princess and her daughter, the Duchess of Brunswick, attested to having seen the cross upon one occasion encircled by flames and coming out of the fire unhurt. In 1793 the constitutional curé took the cross and preserved it until his death in 1827, when he remitted it to the archbishop of Paris. The inscription is in Greek and covers the length and the two arms: Jesus Christus cruci affixus qui exaltavit hominum naturum, scribit Comnenus Manuel coronatus. The following are some of the enormous number of valuables which formerly filled the treasury. In the inventory of 1763 there were no less than four busts and two statues in gold, silver-gilt, and jewelled; six silver reliquaries, two of gold, and five of silver-gilt; a gold cross attributed to S. Eloi, six silver-gilt crosses, and a whole closet full of silver candlesticks; besides a number of chalices, patens, ciborium, pax, censers, cruets, and other vessels for the altar; but very few were anterior to the 16th century. Of these the following remain: the Holy Crown from the S. Chapelle (imitation); the Holy Nail from S. Denis, given to Charlemagne by Constantine V., placed in the treasury of Aix-la-Chapelle, whence it was carried by Charles le Chauve to France; the golden cross of the Emperor Manuel Comnenus, 12th century, which was bequeathed by the Princess Anne de Gonzague to the monks of S. Germain des Prés in 1683;[115] two silver-gilt chalices of the 13th century; the relic of the True Cross sent in 1109 to Galon, bishop of Paris, by Anseau, precentor of the church of the Holy Sepulchre at Jerusalem;[116] the crozier of Bishop Elides de Sully, of wood and copper; the crucifix belonging to S. Vincent de Paul, which he presented to Louis XIII. upon his death-bed; the "discipline" of S. Louis; portions of this king's raiment; and the soutanes of archbishops Affre, Sibour, and Darboy.