Meis - Mosteiro de Santa María da Armenteira

The Armenteira monastery was founded in 1149 by the noble Don Ero and joined the Cistercian order in 1162. It belonged to the filiation of the primary abbey of Clairvaux. The monastery received donations from Alfonso VI and Ferdinand II.

The abolition of the monastery in 1837 brought an end to the monastery, which fell into disrepair until a society of friends of the monastery was formed in 1963. In 1989, a community of Trappist nuns moved into the monastery.

The church, begun around 1167, was completed in 1225. The nave in the shape of a Latin cross has three aisles.
The crossing is surmounted by a low crossing tower.