Analysis of information sources in references of the Wikipedia article "Khagan" in English language version.
territories within his empire. He took the title "Heavenly Khan," thus designating himself as their ruler. A little later the Western Turks, although then at the height of their power, were badly defeated, and the Uighurs, a Turkish tribe, were detached from them and became sturdy supporters of the T'ang in the Gobi. The Khitan, Mongols in Eastern Mongolia and Southern Manchuria, made their submission (630). In the Tarim basin
the successes of Tang Taizong and to his taking the title of "Heavenly Qaghan" at the request of "the peoples of the northwest" in 630/631. The letter goes on to describe how Taizong's envoy was sent to pacify the Kirghiz in 632/633 and how in 647/648 a Kirghiz chieftain came to the Tang court where he was granted titles, including commander-in-chief of the Kirghiz (Jian-kun). All of this implied Kirghiz subordination to Tang authority, at least in Chinese eyes. According to the letter, Kirghiz tribute had come to the Tang court "uninterruptedly" until the end of the Tianbao reign period (742–756) when Kirghiz contact with the Tang state was cut off by the rise of Uighur power in Mongolia.
but their ultimate origins may lie outside the Turkic family, as is most likely the case for the title of khagan (χαγάνος, chaganus) < ? Middle Iranian *hva-kama- 'self-ruler, emperor' (Dybo, Reference Dybo2007: 119–120). Following Benveniste (Reference Benveniste1966), Dybo (Reference Dybo2007: 106–107) considers Turkic *χatun 'king's wife' a word of ultimate Eastern Iranian origin, borrowed presumably from Early Saka *hvatuñ, cf. the attested Soghdian words xwt'w 'ruler' (< *hva-tāvya-) and xwt'yn 'wife of the ruler' (< *hva-tāvyani).
but their ultimate origins may lie outside the Turkic family, as is most likely the case for the title of khagan (χαγάνος, chaganus) < ? Middle Iranian *hva-kama- 'self-ruler, emperor' (Dybo, Reference Dybo2007: 119–120). Following Benveniste (Reference Benveniste1966), Dybo (Reference Dybo2007: 106–107) considers Turkic *χatun 'king's wife' a word of ultimate Eastern Iranian origin, borrowed presumably from Early Saka *hvatuñ, cf. the attested Soghdian words xwt'w 'ruler' (< *hva-tāvya-) and xwt'yn 'wife of the ruler' (< *hva-tāvyani).
but their ultimate origins may lie outside the Turkic family, as is most likely the case for the title of khagan (χαγάνος, chaganus) < ? Middle Iranian *hva-kama- 'self-ruler, emperor' (Dybo, Reference Dybo2007: 119–120). Following Benveniste (Reference Benveniste1966), Dybo (Reference Dybo2007: 106–107) considers Turkic *χatun 'king's wife' a word of ultimate Eastern Iranian origin, borrowed presumably from Early Saka *hvatuñ, cf. the attested Soghdian words xwt'w 'ruler' (< *hva-tāvya-) and xwt'yn 'wife of the ruler' (< *hva-tāvyani).
but their ultimate origins may lie outside the Turkic family, as is most likely the case for the title of khagan (χαγάνος, chaganus) < ? Middle Iranian *hva-kama- 'self-ruler, emperor' (Dybo, Reference Dybo2007: 119–120). Following Benveniste (Reference Benveniste1966), Dybo (Reference Dybo2007: 106–107) considers Turkic *χatun 'king's wife' a word of ultimate Eastern Iranian origin, borrowed presumably from Early Saka *hvatuñ, cf. the attested Soghdian words xwt'w 'ruler' (< *hva-tāvya-) and xwt'yn 'wife of the ruler' (< *hva-tāvyani).
but their ultimate origins may lie outside the Turkic family, as is most likely the case for the title of khagan (χαγάνος, chaganus) < ? Middle Iranian *hva-kama- 'self-ruler, emperor' (Dybo, Reference Dybo2007: 119–120). Following Benveniste (Reference Benveniste1966), Dybo (Reference Dybo2007: 106–107) considers Turkic *χatun 'king's wife' a word of ultimate Eastern Iranian origin, borrowed presumably from Early Saka *hvatuñ, cf. the attested Soghdian words xwt'w 'ruler' (< *hva-tāvya-) and xwt'yn 'wife of the ruler' (< *hva-tāvyani).
but their ultimate origins may lie outside the Turkic family, as is most likely the case for the title of khagan (χαγάνος, chaganus) < ? Middle Iranian *hva-kama- 'self-ruler, emperor' (Dybo, Reference Dybo2007: 119–120). Following Benveniste (Reference Benveniste1966), Dybo (Reference Dybo2007: 106–107) considers Turkic *χatun 'king's wife' a word of ultimate Eastern Iranian origin, borrowed presumably from Early Saka *hvatuñ, cf. the attested Soghdian words xwt'w 'ruler' (< *hva-tāvya-) and xwt'yn 'wife of the ruler' (< *hva-tāvyani).
