2. Wife of Antiochus IV., King of Commagene, [ANTIOCHUS, p. 194.] In the annexed coin she is called ΒΑΣΙΛΙΣΣΑ ΙΩΤΑΠΗ ΦΙΛΑΔΕΛΦΟΣ: from the latter epithet we may infer that she was the sister as well as wife of Antiochus, of which we find few examples among the Greek kings of Syria, though the practice was very common among those of Egypt. lotape had a daughter of the same name, who was married to Alexander of the race of Herod. The reverse of the coin is the one which we commonly find on the coins of the kings of Commagene. [See vol. I. p. 194b.] (Eckhel, vol. iii. pp. 257, 258.)
A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890