Carl Friedrich, the elder of the two, is the heir apparent.

Carl Friedrich was a German-American professor and political theorist.

Carl Friedrich may also refer to:

Carl Friedrich von Weizsäcker, German physicist and philosopher (b. 1912)

Carl Friedrich (disambiguation)

On 20 January, 2013, Sophie gave birth to twin sons, Carl Friedrich and Louis Ferdinand.

Carl Friedrich, the elder of the two, is the heir apparent to the House of Hohenzollern.

Carl Friedrich von Weizsäcker, physicist, philosopher and political scientist (peace and conflict studies)

Hannah Arendt, Carl Friedrich and Zbigniew Brzezinski were prominent advocates of this "totalitarian" interpretation.

Keil, Carl Friedrich.