Francisco Castrejón (born 1947), former Mexican football (soccer) goalkeeper
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Mambrilla de Castrejón, municipality located in the province of Burgos, Castile and León, Spain
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Castrejón de la Peña, municipality located in the province of Palencia, Castile and León, Spain
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Apaxtla de Castrejón, city and seat of the municipality of Apaxtla, in the state of Guerrero, south-western Mexico