Premise: The Greek monarchy was abolished by the then-ruling military regime on 1 June 1973, an act that was confirmed by plebiscite on 8 December 1974 after the regime's fall. The title of king is used by the last reigning monarch, Constantine II (r. 1964–1973). His son, the Crown Prince Pavlos, who was born in 1967, is the heir apparent to the pretended title.
Hypothesis: Crown Prince Pavlos was born during Greek monarchy but is not prince.