Castillejo de Martín Viejo

Spain, Spain

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Castillejo de Martín Viejo refers to a small municipality in Salamanca province, western Spain, rather than a prominent castle, located in the rural Campo de Argañán near Ciudad Rodrigo amid prehistoric Siega Verde rock art sites and Roman-era remnants.

Named after a modest medieval fortified settlement or watchpost ("castillejo") tied to the 12th-13th century repopulation under Alfonso VI and Fernando II, it features no major standing castle but preserves traditional rural architecture, a 17th-century Gothic Church of San Pedro Apóstol, and historical ties to the War of Spanish Succession.

With under 100 residents today, it embodies quiet Castilian village life overlooking the Águeda River valley, enhanced by its coat of arms depicting a castle and the Viejo lineage's azure band with dragons.