The Māori Queen, Nga wai hono i te po, will join the national hīkoi to Parliament on Tuesday, saying she will not accept a process which undermines Te Tiriti o Waitangi.
Thousands of supporters of the hīkoi against the Treaty Principles Bill reached Porirua, north of Wellington, on Sunday evening.
They will have a rest day on Monday before heading to Wellington and Parliament on Tuesday.
The Kiingitanga said the Māori Queen was willing to help lead a conversation about nationhood and national unity.
It said she was calling for the nation to come together, work through divisions and embrace a shared identity moving forward.
"Our nation's strength lies in honouring the promises we make to each other."
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