Guwalgiya

Guwalgiya (Manchu: ᡤᡡᠸᠠᠯᡤᡳᠶᠠ ; Chinese: 瓜爾佳氏) was one of the most powerful Manchu clans. It is often listed by historians as the first of the eight prominent Manchu clans of the Qing dynasty. After the demise of the dynasty, some of its descendants sinicized their clan name to the Chinese surname Guan, otherwise romanized as Kuan or Kwan.

People who hail from the clan or trace some ancestry to the clan include:

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Wikipedia