Kat Hing Wai was built four or five centuries ago by the Hakka Tang clan, one of the Five Great Clans that migrated here from North China .
The Hakka Tang clan were one of the most brutally violent of the Five Great Clans.
mnli hypothesis: The Hakka Tang clan were one of the most brutally violent of the Five Great Clans. premise: Kat Hing Wai was built four or five centuries ago by the Hakka Tang clan, one of the Five Great Clans that migrated here from North China .