Castrejon was born at Madrid. He was a pupil of Francisco Fernandez, and possessed more facility in colouring than skill in drawing. His best works are of small dimensions, but he sometimes painted large altar-pieces, as the Martyrdom of Santa Lucia, in the church of San Felipe el Real at Madrid, which was destroyed by fire in 1718. He painted figures in the architectural pieces of Roque Ponce and of Josef Garcia, and groups within the flower-garlands of Gabriel de la Corte. He died at Madrid.
