sentences:  Although Plateresco is a commonly used term to define most of the architectural production of the late 15th and first half of 16th century, some architects acquired a more sober personal style, like Diego Siloe, and Andrés de Vandelvira in Andalusia, and Alonso de Covarrubias and Rodrigo Gil de Hontañón in Castile.This phase of Spanish Renaissance is called Purism.From the mid 16th century, under such architects as Pedro Machuca, Juan Bautista de Toledo, and Juan de Herrera, there was a much closer adherence to the art of ancient Rome, sometimes anticipating Mannerism.