The Mantle of Luís I, also known as the Mantle of the Constitutional Kings (Portuguese: Manto de D. Luís I; Manto dos Reis Constitucionais), is the royal robe, a part of the Portuguese Crown Jewels, that was fashioned for the acclamation of King Luís I, though used by all Portuguese monarchs after him.
The Mantle of Luís I was created for the acclamation of Luís I as King. It was fashioned in Portugal, alongside many different pieces of jewelry.
The mantle was made in Portugal for Luís I's acclamation. It is fashioned out of velvet, silk, ermine, gold thread, wire rod, blade, sequins, and various precious gems. The design of the robe bears several symbols of the Kingdom of Portugal.