The 1558 baptismal record Curiosity · Alcázar de San Juan, La Mancha, Ciudad Real Image of Alcázar de San Juan, not of the place itself. A baptismal entry of 1558 preserved in Alcázar de San Juan records a son of Blas Cervantes Saavedra, a document that has fuelled the dispute over Miguel de Cervantes's birthplace for centuries. Photo: Antonio García (CC BY-SA 3.0) What to see and do in Alcázar de San Juan