Catholic but was half Jewish. His mother had a daughter, Annette, by her previous husband. Annette survived Auschwitz, where her mother was murdered, and left Poland forever for France. Polanski's parents were both agnostics. Polanski later stated that he was an atheist. World War II and the Holocaust The Polański family moved back to Kraków, Poland, in early 1937, and were living there when World War II began with the invasion of Poland. Kraków was soon occupied by the German forces, and the racist and anti-Semitic Nuremberg Laws made the Polańskis targets of persecution, forcing them into the Kraków Ghetto, along with thousands of the city's Jews. Around the age of six, Polanski attended primary school for only a few weeks, until "all the Jewish children were abruptly expelled", writes biographer Christopher Sandford. That initiative was soon followed by the requirement that all Jewish children over the age of twelve wear white armbands with a blue Star of David imprinted for visual identification. After he was expelled, Polanksi would not be allowed to enter another classroom for six years. Polanski witnessed both the ghettoization of Kraków's Jews into a compact area of the city, and the subsequent deportation of all the ghetto's Jews to German death camps. He watched as his father was taken away. He remembers from age six, one of his first experiences of the terrors to follow: Polanski's father was transferred, along with thousands of other Jews, to Mauthausen, a group of 49 German concentration camps in Austria. His mother, who was four months pregnant at the time, was taken to Auschwitz and killed in the gas chamber soon after arriving. The forced exodus took place immediately after the German liquidation of the Warsaw Ghetto, a real-life backdrop to Polanski's film The Pianist (2002). Polanski, who was then hiding from the Germans, saw his father being marched off with a long line of people. Polanski tried getting closer to his father to ask him what was happening and got within a few yards. His father saw him, but afraid his son might be spotted by the German soldiers, whispered (in Polish), "Get lost!" Polanski escaped the Kraków Ghetto in 1943 and survived with the help of some Polish Roman Catholics, including a woman who had promised Polanski's father that she would shelter the boy. Polanski attended church, learned to recite Catholic prayers by heart, and behaved outwardly