Traffic with the Slavonic states also began early, but the great trade highways from the coast to the interior were not fully developed until the next century. Artistic and intellectual development, in which Byzantine influence is conspicuous, was still in its infancy, and of the few buildings of this period with any architectural pretensions only the smallest traces remain. The town was built chiefly of wood, save for the walls and a couple of small churches. The oldest edifice of which anything remains is the Church of San Stefano, mentioned by Constantine Porphyrogenitus as the most important in the town. Four ruined walls in a court near the diocesan seminary are believed to have belonged to this very ancient building. The tradition is that it was erected by Stephen, Banus of Bosnia, or by his widow. Gelcich suggestively describes what the building must have been like: “In the church of St. Stephen at Ragusa we must picture to ourselves not a work of art, but a chapel capable of containing few beyond the ministers at the altar; low-vaulted, decorated internally, and perhaps externally, with frescoes; an apse just large enough for the altar, lit by such few rays of sunlight as could penetrate by an irregular number of holes piercing the stone slab which closed the single-arched window placed over the altar.”[95] On the outside wall there is a fragment of bas-relief of two arches, each containing a cross on a design of foliage. Close by is the area of a larger church, also in ruins, of a later date, to which Santo Stefano afterwards served as a sacristy. Another church of the Byzantine period is that of San Giacomo in Peline,[96] on the slopes of the Monte Sergio, mentioned by documents of the thirteenth century as already very ancient. Seen from outside, there is nothing to tell one that it is a church at all, but internally it is in good repair, and it is still occasionally used for services. It is quite plain, and has round arches and vaultings. It consists of a nave, three bays, and an apse. The single window, which is a later addition, is to the left of the altar. A small painting of the fourteenth century is the only ornament. Two other churches—San Niccolò in Prijeki, and Santa Maria in Castello—although both of this epoch, were entirely rebuilt in the sixteenth and seventeenth centuries. The best—one is tempted to say the only—piece of Byzantine sculpture in the town is a handsomely carved doorway in a chapel near the Duomo. The design, though simple, is elegant and graceful. On the island of Lacroma an inscription marks the burial-place of Vitalis, archbishop of Ragusa from 1023 to 1047. This, then, is the sum of Byzantine remnants at Ragusa. The name of Monte Sergio, as Prof. Eitelberger says, is the only relic of the Oriental Church; while the name of the west gate, Porta Pile or Pille, is apparently derived from the Greek Πύλαι.