Cesare and Lucrezia at the Rosada. Sketch of power without an outside

Frank Cadogan Cowper, Lucrezia Borgia Reigns in the Vatican in the Absence of Pope Alexander VI (ca. 1910). Tate Gallery, London. I. Pierre Legendre writes that the taboo of incest is the founding prohibition and the structural condition of the necessary division between the private and the political, without which neither law nor State can exist. 1 When that boundary becomes blurred, there is no…