The Manueline cloister that we see today occupies the position of the first Roman cloister in 1228. Although it was designed by Boytac during the 1507-18 construction campaign, it was executed and completed in 1520 by the master Marcos Pires. It is a square-shaped cloister composed of 5 spans of arches supported on buttresses on the outside and mullets built into the interior walls, from which the ribs are pulled. An important feature of this cloister: in its four corners the vaults are made of starry crosses with combined arches (curved).