More like saying a Texan was American.
The Former Yugoslavian republic of Macedonia or the other bit?
Alexander (son of Philip) was a King (Basileus) of the Ancient Greek kingdom of Macedon.
The Ptolemaic Kingdom (/ˌtɒləˈmeɪ.ɪk/; Ancient Greek: Πτολεμαϊκὴ βασιλεία, Ptolemaïkḕ Basileía) was a Hellenistic [i.e. Greek] kingdom based in Egypt. It was ruled by the Ptolemaic dynasty which started with Ptolemy I Soter's accession after the death of Alexander the Great in 323 BC and which ended with the death of Cleopatra VII and the Roman conquest in 30 BC.
In the early 5th century the royal house of Macedon, the Temenidae, was recognised as Greek by the Presidents of the Olympic Games. Their verdict was and is decisive. It is certain that the Kings considered themselves to be of Greek descent from Heracles son of Zeus.
Macedonia or Macedon (/ˈmæsɪˌdɒn/; Greek: Μακεδονία, Makedonía; Ancient: [ma͜akedoní.a͜a]) was an ancient kingdom on the northern periphery of Classical Greece and later the dominant state of Hellenistic Greece.