“With the accession of the Sassanians, Persia regained much of that power and stability to which she had been so long a stranger.... The improvement in the fine arts at home indicates returning prosperity, and a degree of security unknown since the fall of the Achaemenidae.”—Fergusson, History of Architecture, vol. i. pp. 381-3, 3d edition.
When Persia under the Sassanian princes shook off the barbarous yoke to which she had submitted for the space of almost five centuries, she found architecture and the other fine arts at almost the lowest possible ebb throughout the greater part of Western Asia. The ruins of the Achaemenian edifices, which were still to be seen at Pasargadae, Persopolis, and elsewhere, bore witness to the grandeur of idea, and magnificence of construction, which had once formed part of the heritage of the Persian nation; but the intervening period was one during which the arts had well-nigh wholly disappeared from the Western Asiatic world; and when the early sovereigns of the house of Sassan felt the desire, common with powerful monarchs, to exhibit their greatness in their buildings, they found themselves at the first without artists to design, without artisans to construct, and almost without models to copy. The Parthians, who had ruled over Persia for nearly four hundred years,’ had preferred country to city life, tents to buildings, and had not themselves erected a single edifice of any pretension during the entire period of their dominion. Nor had the nations subjected to their sway, for the most part, exhibited any constructive genius, or been successful in supplying the artistic deficiencies of their rulers. In one place alone was there an exception to this general paralysis of the artistic powers. At Hatra, in the middle Mesopotamian region, an Arab dynasty, which held under the Parthian kings, had thought its dignity to require that it should be lodged in a palace, and had resuscitated a native architecture in Mesopotamia, after centuries of complete neglect. When the Sassanians looked about for a foundation on which they might work, and out of which they might form a style suitable to their needs and worthy of their power and opulence, they found what they sought in the Hatra edifice, which was within the limits of their kingdom, and at no great distance from one of the cities where they held their Court.
The early palaces of the Sassanians have ceased to exist. Artaxerxes, the son of Babek, Sapor the first, and their immediate successors, undoubtedly erected residences for themselves exceeding in size and richness the buildings which had contented the Parthians, as well as those in which their own ancestors, the tributary kings of Persia under Parthia, had passed their lives. But these residences have almost wholly disappeared. The most ancient of the Sassanian buildings which admit of being measured and described are assigned to the century between A.D. 350 and 450; and we are thus unable to trace the exact steps by which the Sassanian style was gradually elaborated. We come upon it when it is beyond the stage of infancy, when it has acquired a marked and decided character, when it no longer hesitates or falters, but knows what it wants, and goes straight to its ends. Its main features are simple, and are uniform from first to last, the later buildings being merely enlargements of the earlier, by an addition to the number or to the size of the apartments. The principal peculiarities of the style are, first, that the plan of the entire building is an oblong square, without adjuncts or projections; secondly, that the main entrance is into a lofty vaulted porch or hall by an archway of the entire width of the apartment; thirdly, that beside these oblong halls, the building contains square apartments, vaulted with domes, which are circular at their base, and elliptical in their section, and which rest on pendentives of an unusual character; fourthly, that the apartments are numerous and en suite, opening one into another, without the intervention of passages; and fifthly, that the palace comprises, as a matter of course, a court, placed towards the rear of the building, with apartments opening into it.
The oblong square is variously proportioned. The depth may be a little more than the breadth, or it may be nearly twice as much. In either case, the front occupies one of the shorter sides, or ends of the edifice. The outer wall is sometimes pierced by one entrance only; but, more commonly, entrances are multiplied beyond the limit commonly observed in modern buildings. The great entrance is in the exact centre of the front. This entrance, as already noticed, is commonly by a lofty arch which (if we set aside the domes) is of almost the full height of the building, and constitutes one of its most striking, and to Europeans most extraordinary, features. From the outer air, we look; as it were, straight into the heart of the edifice, in one instance to the depth of 115 feet, a distance equal to the length of Henry VII.‘s Chapel at Westminster. The effect is very strange when first seen by the inexperienced traveller; but similar entrances are common in the mosques of Armenia and Persia, and in the palaces of the latter country. In the mosques “lofty and deeply-recessed portals,” “unrivalled for grandeur and appropriateness,” are rather the rule than the exception; and, in the palaces, “Throne-rooms” are commonly mere deep recesses of this character, vaulted or supported by pillars, and open at one end to the full width and height of the apartment. The height of the arch varies in Sassanian buildings from about fifty to eighty-five feet; it is generally plain, and without ornament; but in one case we meet with a foiling of small arches round the great one, which has an effect that is not unpleasing.
The domed apartments are squares of from twenty-five to forty feet, or a little more. The domes are circular at their base; but a section of them would exhibit a half ellipse, with its longest and shortest diameters proportioned as three to two. The height to which they rise from the ground is not much above seventy feet. A single building will have two or three domes, either of the same size, or occasionally of different dimensions. It is a peculiarity of their construction that they rest, not on drums, but on pendentives of a curious character. A series of semi-circular arches is thrown across the angles of the apartment, each projecting further into it than the preceding, and in this way the corners are got rid of, and the square converted into the circular shape. A cornice ran round the apartment, either above or below the pendentives, or sometimes both above and below. The domes were pierced by a number of small holes, which admitted some light, and the upper part of the walls between the pendentives was also pierced by windows.
There are no passages or corridors in the Sassanian palaces. The rooms for the most part open one into the other. Where this is not the case, they give upon a common meeting-ground, which is either an open court, or a large vaulted apartment. The openings are in general doorways of moderate size, but sometimes they are arches of the full width of the subordinate room or apartment. As many as seventeen or eighteen rooms have been found in a palace.
There is no appearance in any Sassanian edifice of a real second story. The famous Takht-i-Khosru presents externally the semblance of such an arrangement; but this seems to have been a mere feature of the external ornamentation, and to have had nothing to do with the interior.
The exterior ornamentation of the Sassanian buildings was by pilasters, by arched recesses, by cornices, and sometimes by string-courses. An ornamentation at once simple and elegant is that of the lateral faces of the palace at Firuzabad, where long reed-like pilasters are carried from the ground to the cornice, while between them are a series of tall narrow doubly recessed arches. Far less satisfactory is the much more elaborate design adopted at Ctesiphon, where six series of blind arches of different kinds are superimposed the one on the other, with string-courses between them, and with pilasters, placed singly or in pairs, separating the arches into groups, and not regularly superimposed, as pillars, whether real or seeming, ought to be.
The interior ornamentation was probably, in a great measure, by stucco, painting, and perhaps gilding. All this, however, if it existed, has disappeared; and the interiors now present a bare and naked appearance, which is only slightly relieved by the occasional occurrence of windows, of ornamental doorways, and of niches, which recall well-known features at Persepolis. In some instances, however, the arrangement of the larger rooms was improved by means of short pillars, placed at some distance from the walls, and supporting a sort of transverse rib, which broke the uniformity of the roof. The pillars were connected with the side walls by low arches.
Such are the main peculiarities of Sassanian palace architecture. The general effect of the great halls is grand, though scarcely beautiful; and, in the best specimens, the entire palace has an air of simple severity which is striking and dignified. The internal arrangements do not appear to be very convenient. Too much is sacrificed to regularity; and the opening of each room into its neighbor must, one would think, have been unsatisfactory. Still, the edifices are regarded as “indicating considerable originality and power,” though they “point to a state of society when attention to security hardly allowed the architect the free exercise of the more delicate ornaments of his art.”