Conversation so far:
Did Adolf Hitler have any siblings?
Adolf Hitler was the fourth of six children born to Alois Hitler and his third wife, Klara Pölzl. Three of Hitler's siblings—Gustav, Ida, and Otto—died in infancy.
Where did Adolf Hitler live during his childhood?
Adolf Hitler was born in Braunau am Inn, Austria-Hungary. His family moved to Passau, Germany when he was three years old.
Did Adolf Hitler live anywhere else during his childhood besides Austria-Hungary and Passau, Germany?
Adolf Hitler's family returned to Austria and settled in Leonding in 1894, and in June 1895 Alois retired to Hafeld, near Lambach, where he farmed and kept bees.
Where did Adolf Hitler go to school as a child?
Adolf Hitler attended Volksschule (a state-owned primary school) in nearby Fischlham.
Did Adolf Hitler have hobbies?
The eight-year-old Adolf Hitler took singing lessons, sang in the church choir, and even considered becoming a priest.
Did Adolf Hitler attend high school?
Alois Hitler sent Adolf Hitler to the Realschule, a secondary school in Linz in September 1900.

Question: What did his parents do?
Self-contained rewrite: What did Adolf Hitler's parents do?