"The Duke and Duchess didn't request this, didn't know about it, and had nothing to do with the content or guidance offered."
Harry and Meghan have recently faced public backlash over their recent $4.4 million taxpayer funded renovations.
The Palace said major work was needed to turn the house - which is in the grounds of Windsor Castle - from five separate cottages into a single home for Harry and Meghan, and their newborn.
Buckingham Palace said Frogmore Cottage was in very poor shape and needed ceilings and floors replacing, extensive rewiring, and the installation of gas and water mains - but there's no mention of a yoga studio.
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