Answer:
The Hashemite name is derived from Hashem, a grandson of Qusai and the great-grandfather of the Prophet Mohammad (peace be upon him). The Hashemites of Jordan are thus direct descendants of the Prophet through his daughter, Fatima, and her husband, Ali.
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I don't know which specific context you refer to - the Han Chinese have conquered many people.
So I will provide one example - in Taiwan, the aboriginal people were required to have Chinese names in their passports until recently, which means that every person was forced to adopt a Chinese name, and often their original name was dropped, and (over generation) forgotten. This has changed how people self-identify: weakening their indigenous sense of identity.