The Mantle of João VI, also known as the Mantle of the United Kingdom of Portugal, Brazil, and the Algarves (Portuguese: Manto de João VI; Manto do Reino Unido de Portugal, do Brasil, e dos Algarves), is the royal robe, a part of the Portuguese Crown Jewels, that was fashioned for the acclamation of King João VI, alongside the Crown of João VI and the Sceptre of the Armillary.