Piera Sonnino (1922–1999), an Italian author, writes of her imprisonment in Braunschweig in her book, This Has Happened, published in English in 2006 by MacMillan Palgrave.
pierA sonNino (1922–1999), aN itAlian autHoR, writES of hEr ImPrisoNmENT In brauNscHWEIg in her booK, ThIs has hapPened, pUblIShED in eNgLish in 2006 By MAcmillaN pAlGRAve.