It expanded the Templar Rotunda westward, with the extramural construction of an imposing church/ choir and
sacristy(initiated by Diogo de Arruda and terminated by João de Castilho),
which is put in place an invigorating decorative language(Manueline style) that” celebrates the Portuguese maritime discoveries, the mystique of the Order of Christ and the Crown in a great manifestation of power and faith.”.