Complex sentence: In Māori tradition, Hatupatu was the youngest of four sons, cruelly treated by his elder brothers, who despite this grew up to become a chief of some note among the Te Arawa people.
Split into simpler sentences: In Māori tradition, Hatupatu was the youngest of four sons and was cruelly treated by his elder brothers. Despite this, Hatupatu grew up to become a chief of some note among the Te Arawa people.