The chapter house has an original mid-13th-century tiled pavement. A door within the vestibule dates from around 1050 and is believed to be the oldest in England.[citation needed] The exterior includes flying buttresses added in the 14th century and a leaded tent-lantern roof on an iron frame designed by Scott. The Chapter house was originally used in the 13th century by Benedictine monks for daily meetings. It later became a meeting place of the King's Great Council and the Commons, predecessors of Parliament. COUNT 4
QSN1 What kind of tiled pavement is in the chapter house? ANS1 mid-13th-century QSN2 A door in the vestible dates back to when? ANS2 1050 QSN3 When were the exterior flying buttresses added? ANS3 the 14th century QSN4 Who else met in the chapter house? ANS4 King's Great Council and the Commons