I class as devotional, all those which express a dogma merely; all the enthroned Madonnas, alone or surrounded by significant accessories or attendant saints; all the Mystical Coronations and Immaculate Conceptions; all the Holy Families with saints, and those completely ideal and votive groups, in which the appeal is made to the faith and piety of the observer. I shall give the characteristic details, in particular instances, further on.
The altar-pieces in a Roman Catholic church are always either strictly devotional objects, or it may be, historical subjects (such as the Nativity) treated in a devotional sense. They are sometimes in several pieces or compartments. A Diptych is an altar-piece composed of two divisions or leaves which are united by hinges, and close like a book. Portable altar-pieces of a small size are generally in this form; and among the most valuable and curious remains of early religious art are the Greek and Byzantine Diptychs, sometimes painted, sometimes carved in ivory[1]. A Triptych is an altar-piece in three parts; the two outer divisions or wings often closing as shutters over the central compartment.
[Footnote 1: Among the "Casts from Ancient Ivory Carvings", published by the Arundel Society, will be found some interesting and illustrative examples, particularly Class III. Diptych b, Class VII Diptych c and Triptych f, Class IX. Triptych k.]
On the outside of the shutters or doors the Annunciation was generally painted, as the mystery which opened the gates of salvation; occasionally, also, the portraits of the votaries or donors.
Complete examples of devotional representation occur in the complex and elaborate altar-pieces and windows of stained glass, which often comprehend a very significant scheme of theology.[1]. I give here plans of two of these old altar-pieces, which will assist the reader in elucidating the meaning of others.
[Footnote 1: Still more important examples occur in the porches and exterior decoration of the old cathedrals, French and English which have escaped mutilation. These will be found explained at length in the Fourth Series of Sacred and Legendary Art.]
The first is the altar-piece in the Rinuccini Chapel in the church of the Santa Croco of Florence. It is necessary to premise that the chapel was founded in honour of the Virgin and Mary Magdalene; while the church is dedicated to the Holy Cross, and belongs to the Franciscans.
[Illustration: Altar-piece]
The compartments are separated by wood-work most richly carved and gilt in the Gothic style, with twisted columns, pinnacles, and scrolls. The subjects are thus distributed.
A. The Virgin and Child enthroned. She has the sun on her breast, the moon under her feet, the twelve stars over her head, and is attended by angels bearing the attributes of the cardinal virtues. B. St. John the Baptist. C. St. Francis. D. St. John Evangelist. E. Mary Magdalene. 1. The Crucifixion, with the Virgin and St. John. 2, 3, 4, 5. The four Evangelists with their books: half length. 6, 7. St. Peter and St. Paul: half length. 8, 9, 10, 11. St. Thomas, St. Philip, St. James, and St. Andrew: half length. PP. The Predella. 12. The Nativity and Adoration of Magi. 13. St. Francis receives the Stigmata. 14. Baptism of Christ. 15. The Vision of St. John in Patmos. 16. Mary Magdalene borne up by angels. Between the altar-piece and the predella runs the inscription in Gothic letters, AVE DELICISSIMIS VIRGO MARIA, SUCCURRE NOBIS MATER PIA. MCCCLXXVIII.