- In medieval drama, a convention whereby several different locationswere represented on the stage at the same time. This practice originatedwith the liturgical drama, in which several 'mansions' orperforming areas were arranged about the church. The convention surviveduntil the early 17th century on the Continent and in English courtmasques, although the Elizabethan stage had dispensed with it. InFrance, the single set became standard with the advent of classicaltragedy. The convention has sometimes been revived in the 20th century,for instance in the staging of John Arden's play Armstrong'sLast Goodnight (1964).