C. E. Bosworth: Khwarazmshahs i. Descendants of the line of Anuštigin. In Encyclopaedia Iranica, online ed., 2009: "Little specific is known about the internal functioning of the Khwarazmian state, but its bureaucracy, directed as it was by Persian officials, must have followed the Saljuq model. This is the impression gained from the various Khwarazmian chancery and financial documents preserved in the collections of enšāʾdocuments and epistles from this period. The authors of at least three of these collections—Rašid-al-Din Vaṭvāṭ (d. 1182-83 or 1187-88), with his two collections of rasāʾel, and Bahāʾ-al-Din Baḡdādi, compiler of the important Ketāb al-tawaṣṣol elā al-tarassol—were heads of the Khwarazmian chancery. The Khwarazmshahs had viziers as their chief executives, on the traditional pattern, and only as the dynasty approached its end did ʿAlāʾ-al-Din Moḥammad in ca. 615/1218 divide up the office amongst six commissioners (wakildārs; see Kafesoğlu, pp. 5-8, 17; Horst, pp. 10-12, 25, and passim). Nor is much specifically known of court life in Gorgānj under the Khwarazmshahs, but they had, like other rulers of their age, their court eulogists, and as well as being a noted stylist, Rašid-al-Din Vaṭvāṭ also had a considerable reputation as a poet in Persian."
C. E. Bosworth, "Chorasmia ii. In Islamic times" in: Encyclopaedia Iranica (reference to Turkish scholar Kafesoğlu), v, p. 140, Online Edition: "The governors were often Turkish slave commanders of the Saljuqs; one of them was Anūštigin Ḡaṛčaʾī, whose son Qoṭb-al-Dīn Moḥammad began in 490/1097 what became in effect a hereditary and largely independent line of ḵǰᵛārazmšāhsTemplat:Which lang." (LINK)
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Negmatov, B. M. "ABOUT THE ARMY OF STATE OF JALOLIDDIN KHOREZMSHAH." CURRENT RESEARCH JOURNAL OF PEDAGOGICS 2, no. 09 (2021): 13-18. p.16. “The Khorezmshahs belonged to the Bekdili clan of the Oguzs. It is natural, therefore, that their black flag bears the seal of this tribe”
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"Persian Prose Literature." World Eras. 2002. HighBeam Research. (3 September 2012);"Princes, although they were often tutored in Arabic and religious subjects, frequently did not feel as comfortable with the Arabic language and preferred literature in Persian, which was either their mother tongue—as in the case of dynasties such as the Saffarids (861–1003), Samanids (873–1005), and Buyids (945–1055)—or was a preferred lingua franca for them—as with the later Turkish dynasties such as the Ghaznawids (977–1187) and Saljuks (1037–1194)". [1]