A tetraconch, from the Greek for "four shells", is a building, usually a church or other religious building, with four apses, one in each direction, usually of equal size. The basic ground plan of the building is therefore a Greek cross. (wiki)
The connection belongs to Architecture connections.
- Bosra: The ruined so-called Cathedral of Bosra, of the early 6th century, is the earliest major Syrian tetraconch church (wiki)
- Echmiatsin and Zvartnots: Saint Hripsime Church at Echmiatsin: "has a square tetraconch highly complex central plan" (wiki); also Zvartnots "a 7th-century centrally planned aisled tetraconch type"
- Mtskheta: The Jvari church is an early example of a "four-apsed church with four niches" domed tetraconch. (wiki)
- Ravenna: The Mausoleum of Galla Placidia in Ravenna (425–30), world-famous for its mosaics, is almost a tetraconch, although there are short vaulted arms leading from the central space to each apse-end. These end in a flat wall with no semi-dome, and the entrance end is slightly longer (wiki)
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