Complex sentence: She was the daughter and one of the children born to King Artavasdes I of Media Atropatene, while her mother was an unnamed daughter of the Commagenean Monarchs Antiochus I Theos and Isias.
Split into simpler sentences: She was the daughter of King Artavasdes I of Media Atropatene. Her mother was an unnamed daughter of the Commagenean Monarchs Antiochus I Theos and Isias.