The Castle of Turégano (es|Castillo de Turégano) is an ancient fortress located in the town of Turégano north of Segovia, Spain.[1] The castle was founded on the site of a pre-existing fortress. Its structure is integrated into the adjacent church of San Miguel.
In 1585, the castle was used to imprison Antonio Pérez, the then-disgraced secretary of king Philip II.[2] An attempt by a group led by Álamos de Barrientos to free him from captivity here failed.[2]