A prison room at Fort William, Calcutta, India, so called after the alleged suffocation there in 1756 of some English prisoners. They had been incarcerated by the nawab, Siraj ud-Daula, in retaliation for extending the fort against previous agreements. The incident has an important place in British imperial mythology, for British accounts grossly exaggerated both the smallness of the room and the number of prisoners, thus suggesting an act of barbarism on the nawab’s part.