General view
The existing Main Chapel replaced the primitive Roman-Gothic one, considered at the time for having reduced dimensions for the solemnity of the celebrations.
It was built in the 18th century, with the patronage of King D, João V, in the Barroque style. And it is distinguished by its grandeur and the beauty afforded by marbles of various colours, whether on the walls or on the flooring.
It is a work of art from the famous German architect Johann Friedrich Ludwig who was also responsible for the monumental Convent of Mafra. Worthy of note are the great crucifix in cedarwood, the painting of Our Lady of the Assumption, the busts of Saints Peter and Paul and the choir stand of Scholla Cantorum and the organ of Oldovini.