The expression "king of kings of the Iranians" found in Ardashir's inscription remained a stock epithet of all the Sasanian kings. Similarly, the inscription "the Mazda-worshipping ("mazdēsn") lord Ardashir, king of kings of the Iranians" that appears on Ardashir's coins was likewise adopted by Ardashir's successors. Ardashir's son and immediate successor, Shapur I ("r." 240/42–270/72) extended the title to "King of Kings of Iranians and non-Iranians" ( "šāhān šāh ī ērān ud anērān"; "basileús basiléōn Arianṓn"), thus extending his intent to rule non-Iranians as well, or because large areas of the empire was inhabited by non-Iranians. In his trilingual inscription at the Ka'ba-ye Zartosht, Shapur I also introduces the term "*ērānšahr". Shapur's inscription includes a list of provinces in his empire, and these include regions in the Caucasus that were not inhabited predominantly by Iranians. An antonymic "anērānšahr" is attested from thirty years later in the inscriptions of Kartir, a high priest under several Sasanian kings. Kartir's inscription also includes a lists of provinces, but unlike Shapur's considers the provinces in the Caucasus "anērānšahr". These two uses may be contrasted with "ērānšahr" as understood by the late Sasanian "Šahrestānīhā ī Ērānšahr", which is a description of various provincial capitals of the "ērānšahr", and includes Africa and Arabia as well.