In church architecture, a retroquire (also spelled retrochoir), or back-choir, is the space behind the high altar in a church or cathedral, which sometimes separates it from the end chapel. It may contain seats for the church choir. An example of a retroquire is within Winchester Cathedral, which was built between 1200 and 1230 to house a shrine for Saint Swithun. See also Cathedral diagram Choir (architecture) Ante-choir Church References Architectural elements Church architecture