The Pantheon was created under orders from Ferdinand II of Portugal, transforming the old refectory of the monastery into the burial place it is today. The majority of the tombs are located on the sides of the pantheon, and are simple marble boxes with spaces of four tombs. If the tomb is of a monarch, it has a crown engraved in gold on the side of the tomb and a crown placed on top of the entire set of tombs. The tombs in the center aisle of the pantheon are those belonging to Carlos I of Portugal, Luís Filipe, Prince Royal of Portugal, Manuel II of Portugal and Queen Amélie of Orléans; the two martyrs of the Lisbon Regicide, the last King of Portugal and the last Queen consort of Portugal.