no similar attempts. After the death of Mardavij, many of his troops entered into the service of the founder of the Buyid dynasty, Imad al-Dawla. Finally, the Buyid Emir Panāh Khusraw, better known by his laqab (honorific name) of 'Adud al-Dawla proclaimed himself Shahanshah after defeating rebellious relatives and becoming the sole ruler of the Buyid dynasty in 978 AD. Those of his successors that likewise exercised full control over all the Buyid emirates would also style themselves as Shahanshah. During times of Buyid infighting, the title became a matter of importance. When a significant portion of Firuz Khusrau's (laqab Jalal al-Dawla) army rebelled in the 1040s and wished to enthrone the other Buyid Emir Abu Kalijar as ruler over the lands of the entire dynasty, they minted coins in his name with one side bearing the name of the ruling Caliph (Al-Qa'im) and the other side bearing the inscription "al-Malik al-Adil Shahanshah". When discussing peace terms, Abu Kalijar in turn addressed Jalal in a letter with the title Shahanshah. When the struggle between Abu Kalijar and Jalal al-Dawla resumed, Jalal, wanting to assert his superiority over Kalijar, made a formal application to Caliph Al-Qa'im for the usage of the title Shahanshah, the first Buyid ruler to do so. It can be assumed that the Caliph agreed (since the title was later used), but its usage by Jalal in a mosque caused outcry at its impious character. Following this, the matter was raised to a body of jurists assembled by the Caliph. Though some dissented, the body as a whole ruled that the usage of al-Malik al-Adil Shahanshah was lawful. Hellenic usage Alexander the Great's conquests ended the Achaemenid Empire and the subsequent division of Alexander's own empire resulted in the Seleucid dynasty inheriting the lands formerly associated with the Achaemenid dynasty. Although Alexander himself did not employ any of the old Persian royal titles, instead using his own new title "King of Asia" (βασιλεὺς τῆς Ἀσίας), the monarchs of the Seleucid Empire more and more aligned themselves to the Persian political system. The official title of most of the Seleucid kings was "Great King", which like "King of Kings", a title of Assyrian origin, was frequently used by the Achaemenid rulers and was intended to demonstrate the supremacy of its holder over other rulers. "Great King" is prominently attested for both Antiochus I (r. 281–261 BC) in the Borsippa