In a release the Maori Party confirmed that Maori King Tuheitia approached his Tongan Counterpart King Tupou VI to ask Tongans to provide a candidate for the New Zealand elections.
It said its Maungakiekie candidate Manase Lua had been blessed by the Royal Houses.
But Tongan Advisory Council Chair Melino Maka said involving the royals in such situations was dangerous.
"One of those institutions that we respect and all of a sudden they are involved in trying to choose which political party that the Tongan people should vote for," Mr Melino said.
