21. Prior's scheme for the ciborium at Norwich Cathedral was dropped, a deep disappointment for him. 22. An inscription indicates that the donor of the ciborium was Theodore, Bishop of Thessaloniki in the 13th century. 23. In 2010 these items included a ciborium and chalice from Therese's time as sacristan for her community. 24. The nave is flanked by rounded Romanesque arches and leads to a presbytery with a Ciborium for main altar. 25. The ciborium is an altar-vessel in which the consecrated particles for the Communion of the laity are kept. 26. This is described as a " fastigium " in the earliest sources, but was probably a ciborium . 27. The ciborium commissioned by Justinian the Great for Hagia Sophia in Constantinople and described by Paulus Silentarius is now lost. 28. Architectural historians generally prefer to use " ciborium " at the least for all square four-column roofed forms. 29. The sanctuary is flanked by two transverse arches; the frontal of the altar, surmounted by a Gothic ciborium . 30. Some remarkable examples of Renaissance art can be found in the cathedral, including a 15th Ciborium in the flamboyant Gothic style.