Adolf Hitler, having been stateless for seven years, obtains German citizenship when he is appointed a Brunswick state official by Dietrich Klagges, a fellow Nazi. As a result, Hitler is able to run for Reichspräsident in the 1932 election.

Adolf Hitler was an Austrian-born German politician who was the dictator of Germany during the Nazi period from 1933 until his suicide in 1945. He rose to power as the leader of the Nazi Party, becoming the chancellor in 1933 and then taking the title of Führer und Reichskanzler in 1934. His invasion of Poland on 1 September 1939 marked the start of the Second World War. He was closely involved in military operations throughout the war and was central to the perpetration of the Holocaust: the genocide of about six million Jews and millions of other victims.

In international law, a stateless person is someone who is, “Not considered as a national by any state under the operation of its law". Some stateless people are also refugees. However, not all refugees are stateless, and many people who are stateless have never crossed an international border. At the end of 2022, the United Nations High Commissioner for Refugees published an estimation of 4.4 million people worldwide as either stateless or of undetermined nationality, 90,800 (+2%) more than at the end of 2021. However, the data itself is not complete because UNHCR does not have data from many countries, such as from at least 22 countries where mass statelessness exists. The data also does not include de facto stateless people who have no legal identification to prove their nationality or legal existence. According to the World Bank, at least 850 million fit that category. Given that the legal concept of nationality prevails in practice, completely undocumented people fit the definition of being de facto stateless.

The Free State of Brunswick was a state of the German Reich in the time of the Weimar Republic. It was formed after the abolition of the Duchy of Brunswick in the course of the German revolution of 1918–1919. Its capital was Braunschweig (Brunswick). In 1933 it was de facto abolished by Nazi Germany. The free state was disestablished after the Second World War in November 1946.