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Montecalvo (also: Mons Calvus, meaning "bald peak") is a castle in Redania where Philippa Eilhart maintains her seat of power. It was the site of many secret meetings by the Lodge of Sorceresses. It was with a teleporter at the castle that Yennefer escaped to Skellige. From there, an attack lead by Sabrina Glevissig and Keira Metz on the Nazairi castle of Rhys-Rhun, where Vilgefortz was thought to be hiding, was coordinated.