Nieuwe Keizersgracht 10 I, Amsterdam Previous house Next house Residents in February 1941 Levie Pierotto 1904 - 1945 Duifje Pierotto-Polak 1905 - 1944 Residents in February 1941 Michel de Vries 1912 - 1945 Rachel de Vries-Polak 1913 - 1942 Robert de Vries 1938 - 1942