The castle of Lobarzana is one of the three territories or jurisdictions that used to form part of the historical Terra de Baronceli between the X-XIII centuries, together with Cabreira and Soutovermud. Just like the lost castle of Cabreira (Cabreiroá), Lobarzana was built before the Castle of Monterrei. It is located in Monte do Castelo, between the parishes of Santa Maria das Chás (Oímbra) and San Salvador de Vilaza (Monterrei). The fortress was built in Otero called Outeiro do Castelo / A Cerca / As Laxes das Chás, at 599 meters of altitude dominating a large part of the river Támega valley.