Complex sentence: Instead of using his Manchu clan name Aisin Gioro as a family name, Puren adopted the surname Jin (金), which means "gold" in Mandarin Chinese as does "Aisin" in the Manchu language.
Split into simpler sentences: Instead of using his Manchu clan name "Aisin-Gioro" as his family name, Puren adopted "Jin" as his new family name. "Jin" means "gold" in Mandarin, as does "Aisin" in the Manchu language.