Pito Haranui belonged to an ancient Taranaki people known as the Kāhui-Maru, whose genealogy predates the arrival of Toi.

Maruwharanui had three siblings – a younger brother, Marukōpiri, who settled at Manganui-o-te-Ao, near Raetihi, and two sisters, Mihi-Rawhiti and Hinepango.

Marukopiri married Hineue, the daughter of the famed explorer Tamatea Pokai Whenua of the Tākitimu waka.

Today, most of Ngāti Maru can trace their descent through one or more of the sons of Te Reimatia, the grandsons of Maruwharanui.

Te Runanga o Ngati Maru (Taranaki) Trust was mandated by the tribe as its representative body to negotiate its historic Treaty grievances.