Many seemingly autocratic states are merely a facade of polycratic societies. Even if one individual acts as a figurehead, they will usually have some sort of support network by which they will rule their nations.
While it has been argued that the Nazi regime was totalitarianistic, it is far more suiting to place it as a polycratic state. Adolph Hitler delegated many responsibilities, and his inferiors (such as Albert Speer) would often fight for power. Hitler could not have achieved what he has without such support. The Nazi Regime is therefore a prime example of polycracy.
There are obvious close links with totalitarianism.