In 1496, on the same site where a hermitage under the invocation of Saint Mary of Belem already existed, King Manuel I ordered the construction of a magnificent monastery for the monks of the Order of Saint Jerome. The best example of the Manueline religious architecture was thus born, under the plan by Diogo Boitaca, João de Castilho and Nicolau de Chanterenne, among others. Out of the magnificent ensemble, the highlights are the two Manueline porticos, the vaults of the naves, the royal tombs, the Mannerist altarpiece of the chancel and its silver Baroque tabernacle, the gallery with its Renaissance choir stalls, the sacristy with paintings over the credence and the other spaces of the ancient monastery, notably its cloister. The Monastery is listed as a UNESCO world heritage site.