Complex sentence: As he was of Manchu descent, and would have been named by his family in Manchu, the name "Wú" (吳) was a sinicisation that approximated the pronunciation of the first syllable of his Manchu clan name, "U Hala".
Split into simpler sentences: As he was of Manchu descent and would have been named by his family in Manchu. The name "Wú" (吳) was sinicisation that approximated the pronunciation of the first syllable of his Manchu clan name, "U Hala".