Balue (q.v.) spent eleven years in prison quarters, comfortable enough, in spite of the legend to the contrary, while Harancourt was shut up in an iron cage until 1482.
It was revised and kept alive by Jeremy Bentham in his fanatical scheme for a "panopticon or inspection house," described as "a circular building, an iron cage glazed, a glass lantern as large as Ranelagh, with the cells on the outer circumference."
high; the iron cage attached to one of its, windows was put up in 1495 by Ludovico it Moro for the confinement of persons guilty of treason or sacrilege.