Conversation so far:
What was Immanuel Kant's political philosophy?
In Perpetual Peace: A Philosophical Sketch, Kant listed several conditions that he thought necessary for ending wars and creating a lasting peace.
What were Immanuel Kant's conditions?
Kant listed several conditions that he thought necessary for ending wars and creating lasting peace, which included a world of constitutional republics by establishment of political community.
What else did Immanuel Kant believe besides conditions that he thought were necessary for ending wars and creating a lasting peace?
He opposed democracy, which at his time meant direct democracy, believing that majority rule posed a threat to individual liberty.
Were Immanuel Kant's beliefs controversial?
Did Immanuel Kant ever get in trouble for his beliefs?
What else was interesting about Immanuel Kant's political philosophy besides conditions that he thought were necessary for ending wars and creating a lasting peace,  and opposing direct democracy?
As with most writers at the time, he distinguished three forms of government i.e. democracy, aristocracy, and monarchy with mixed government as the most ideal form of it.

Question: Did he have friends who shared his beliefs?
Self-contained rewrite: Did Immanuel Kant have friends who shared his beliefs?