The assault of the men of Oló on the monastery Historical milestone · Santa Maria d'Oló, Moianès, Barcelona Image of Santa Maria d'Oló, not of the place itself. The castle and the district of Oló had passed in 1369 into the hands of the monastery of l'Estany. On 15 August 1395 the residents assaulted and burned the monastery, in a lawsuit over the redemption of the seigneury that lasted until 1606. 1395 Photo: 86127980@N06 (CC BY-SA 2.0) What to see and do in Santa Maria d'Oló