Mandoa, Mandoa!: A Comedy of Irrelevance by Winifred Holtby (Paperback, 1982).
Mandoa is a small African state. At its head a virgin princess conceives (immaculately) further princesses. The old traditions are undisturbed until the Lord High Chamberlain visits Addis and discovers baths and cocktail shakers, motor cars and telephones. This is 1931.