However, there are a few important leaders and figures you might be thinking of:
* Kingitanga: This is a Māori movement that was established in the 19th century. It aims to preserve Māori culture and sovereignty. The Kingitanga has a King (currently King Tuheitia Paki), but this role is not hereditary and is based on election by the Māori people.
* Tūhoe: This is a Māori iwi (tribe) that has a Tumu (leader). The current Tumu is Tamati Kruger.
* Ngāpuhi: Another large Māori iwi has a rangatira (chief), currently Hori Mason.
It's important to remember that Māori society is complex and there are many different leaders and authorities within each iwi.
If you can provide more context about the specific king you are interested in, I can give you more specific information.