Ordered to be built by D. João V (1689-1750), in fulfillment of a vow to obtain succession of his marriage with D. Maria Ana of Austria, or the cure for a serious illness he suffered, the Real Convento de Mafra is the most important monument of the Portuguese baroque. The architectural ensemble develops symmetrically from a central axis, the Basilica, the culmination of a long façade flanked by two turrets and having the conventual area of the Order of Francisco of the Arrábida Province, which was also occupied, between 1771 and 1791, by the Canons Regrantes de Santo Agostinho.