Conversation so far:
When was Immanuel Kant born?
Immanuel Kant was born on 22 April 1724.
Where was Immanuel Kant born?
Immanuel Kant was born in Königsberg, East Prussia.
Who were Immanuel Kant's parents?
Immanuel Kant's mother was Anna Regina Reuter and his father Johann Georg Kant.
Did Immanuel Kant have any siblings?
Immanuel Kant was the fourth of nine children - four of whom reached adulthood.

Question: where did he go to school?
Self-contained rewrite: Where did Immanuel Kant go to school?