Te Rauparaha
In the summer of 1831–1832 Te Rauparaha attacked the Kaiapoi . After a three-month siege, a fire in the allowed Ngāti Toa to overcome it. Ngāti Toa then attacked Ngāi Tahu on Banks Peninsula and took the at Onawe. In 1832–33 Ngāi Tahu retaliated under the leadership of Tūhawaiki, Taiaroa, Karetai, and Haereroa, attacking Ngāti Toa at Lake Grassmere. Ngāi Tahu prevailed, and killed many Ngāti Toa, although Te Rauparaha again escaped.