Buthelezi is pleading with the public to stop spreading misleading information about the Royal family.
This comes in the wake of social media speculation that the King is compelled to marry before he can issue royal decrees.
While matters of the Royal Family are of public interest, Buthelezi says the public will not be allowed to dictate the affairs of the family.
"The present speculation that his majesty is compelled to marry before he's installed suggests that our present government is mimicking what the apartheid regime imposed on our people," he said.
"This is an inflammatory accusation that can cause deep distress. I'm not saying the king will not marry, it may be possible.