>> guest: my grandmother was a women that met my grandfather while she was working for oscar schindler. they - he introduced her to him, and they - she was smitten by my grandfather - my biological grandfather from very beginning, and they lived together in plaszow and even after the war, and my grandmother still she loved him very much. she took on his name, although they hadn't been married, but they - she was more, i would say, like, she was sort of his wife. >> c-span: you mentioned, plaszow. what is that? >> guest: plaszow is the concentration camp. its concentration camp that was run by my grandfather and my grandmother and my grandfather, you know, stayed there for a period of, i think, yes, several years together. >> c-span: go back to the chart. right below that is a woman whose name is monika hartwig. who is she? >> guest: monika hartwig is my biological mother. she married and this her married - the name that she took on when she was married, but she's also monika - she was born as monika goeth, and she's the daughter of ruth irene and amon. >> c-span: did you know her? >> g