From these we pass to the domes of Périgord and La Charente, the earliest of which date from the commencement of the 11th century. Of the western dome of St Étienne at Périgueux (a.d. 14) only the pendentives remain, sufficient, however, with later examples, to show that these French domes were different from the Byzantine both in construction and form. The pendentives are built on horizontal courses of stone, and the voussoirs of the pointed arches which carried them form part of the pendentives; a few feet above the top of the arches is a moulding and a ledge, above which the dome, ovoid in section, is built. The principal examples following St Étienne are those of S. Jean-de-Cole, Cahors, Souillac, Solignac, Angoulême, Fontevrault, and lastly St Front at Périgueux, built about 1150, in imitation of St Mark’s at Venice. The domes of the latter church were introduced into the old basilica about 1063, and were based on the church of the Apostles at Constantinople, which was pulled down in the 15th century, so that we have only the clear description of Procopius to go by. The domes over the north and south transepts and the choir of St Mark’s are smaller than those over the nave and crossing, because they had to be fitted in between more ancient structures. The construction of the domes of St Mark’s is not known, but at St Front the general design only was copied, and they built them in the Périgordian manner. The masons from Périgord are also responsible for the domes of the Crusaders’ churches in Palestine and for some of the early churches still remaining in Cyprus. The domes of San Cyriaco at Ancona and Sant’ Antonio at Padua were based upon those of St Mark’s at Venice.
In central Italy we have the dome (elliptical in plan) of the cathedral of Pisa, and it was a favourite feature over the crossing of the churches throughout Italy, being generally carried on squinch pendentives. The domes of the baptisteries of Florence, Parma, Trieste and Piacenza, are only internal, being enclosed with vertical walls and a sloping roof. In Sicily, on account of the strong Saracenic influence, the squinches are simple versions of the stalactite pendentives described under Architecture: Mahommedan (q.v.), the earliest example being found in the church of San Giovanni-dei-Leprosi (a.d. 1072), all the domes being ovoid in section.
Except in Périgord and La Charente, domes are not found in the churches in France, but in Spain they were introduced over the crossing at Burgos, Tarragona and Salamanca cathedrals, and were made architectural features externally. This is rarely found in Germany, for although in the cathedrals of Worms, Spires and Mainz, and in the churches of St Martin and Sankt Maria im Capitol at Cologne, the crossings are covered by domes, always carried on squinch pendentives, externally they built lanterns round them.
In the Renaissance styles, the dome was at once accepted as the principal characteristic feature, and its erection over the crossing of Santa Maria del Fiore at Florence was the first important work entrusted to Brunelleschi. The dome was begun in 1422, and finished in 1431, with the exception of the lantern, begun the year of his death in 1444, and completed in 1471. The dome, which is octagonal on plan, is 139 ft. in diameter, and is built with an inner and outer casing, concentric one with the other, tied together by ribs between them: the lower portion is stone, the upper part is brick.
The double shell was also employed by Michelangelo in the dome of St Peter’s at Rome, the outer shell being raised higher than the lower and connected by ribs one with the other. The diameter is 140 ft. and the construction in brick, similar to that at Florence, but the ribs are in stone from Tivoli. In both these cases the weight of the lantern was a very important consideration, and is responsible for the repeated repairs required and the introduction of additional ties.
In this respect Sir Christopher Wren solved the difficulty at St Paul’s cathedral, London, in another way: he provided three shells, the lower one with an eye in the centre forming the inner dome as seen from the interior; the middle one of conical form, and the outer one framed in timber and covered with lead. The conical shell carries the lantern, the weight of which is carried direct to the base, bound with iron ties, with such additional strength as may be given by the portico round.
In all these cases these domes are built on lofty drums, so that externally they present quite a different appearance to those of the Pantheon at Rome, or Sta Sophia in Constantinople.
Of other examples, the domes of the Invalides in Paris, by Mansard (1706), and of the Panthéon by Soufflot (1735), have each three shells, the former having a graceful outline. In Spain the dome of the cathedral at Granada (1530) and the Escurial (1563); in Italy those of Sta Maria della Salute at Venice, the small example of Bramante at Todi (1480) and of the Carignano at Genoa, are worth recording, as also the dome of the Suleimanie mosque at Constantinople (1550). See plates illustrating Architecture; and Indian Architecture. (R. P. S.)
DOMENICHINO (or Domenico), ZAMPIERI (1581-1641), Italian painter, born at Bologna, on the 21st of October 1581, was the son of a shoemaker. The diminutive form of Christian name by which he is constantly known indicates his short stature. He was placed, when young, under the tuition of Denis Calvart; but having been treated with great severity by that master, he left him, and became a pupil in the academy of the Caracci, under Agostino. Towards the beginning of the 17th century he went to Rome, at the invitation of his fellow-pupil and intimate Albani, and prosecuted his studies under Annibale Caracci. The faculty of Domenichino was slow in its development. He was at first timid and distrustful of his powers; while his studious, unready and reserved manners were misunderstood by his companions for dulness, and he obtained the nickname of the “Ox” (Bue). But Annibale Caracci, who observed his faculties with more attention, predicted that the apparent slowness of Domenichino’s genius would in time produce what would be an honour to the art of painting. When his early productions had brought him into notice, he studied with extreme application, and made such advance as to raise his works into a comparison with those of the most admired masters of the time. From his acting as a continual censor of his own works, he became distinguished amongst his fellow-pupils as an accurate and expressive designer; his colours were the truest to nature; Mengs, indeed, found nothing to desire in his works, except a somewhat larger proportion of elegance. That he might devote his whole powers to the art, Domenichino shunned all society; or, if he occasionally sought it in the public theatres and walks, this was in order better to observe the play of the passions in the features of the people—those of joy, anger, grief, terror and every affection of the mind—and to commit them vividly to his tablets; thus, says Bellori, it was that he succeeded in delineating the soul, in colouring life, and calling forth heartfelt emotions, at which all his works aim. In personal character he is credited with temperance and modesty; but, besides his want of sociability, he became somewhat suspicious, and jealous of his master.
In Rome, Domenichino obtained employment from Cardinals Borghese, Farnese and Aldobrandini, for all of whom he painted works in fresco. The distinguished reputation which he had acquired excited the envy of some of his contemporaries. Lanfranco in particular, one of his most inveterate enemies, asserted that his celebrated “Communion of St Jerome” (painted for the church of La Carità towards 1614, for a pittance of about ten guineas, now in the Vatican Gallery, and ordinarily, but most irrationally, spoken of as the second or third best oil picture in the world) was an imitation from Agostino Caracci; and he procured an engraving of this master’s picture of the same subject (now in the Gallery of Bologna), copies of which were circulated for the purpose of proving that Domenichino was a plagiarist. There is in truth a very marked resemblance between the two compositions. The pictures which Zampieri painted immediately afterwards, representing subjects from the life of St Cecilia, only increased the alarm of his competitors, and redoubled their injustice and malignity. Disgusted with these cabals, he left Rome for Bologna, where he remained until he was recalled by Pope Gregory XV., who appointed him principal painter and architect to the pontifical palace. In this architectural post he seems to have done little or nothing, although he