 As the Christian Kingdoms advanced southwards, this model spread throughout the reconquered areas with some variations.Spanish Romanesque also shows the influence of Spanish pre-Romanesque styles, mainly Asturian and Mozarabic, but there is also a strong Moorish influence, especially the vaults of Córdoba's Mosque, and the multifoil arches.In the 13th century, some churches alternated in style between Romanesque and Gothic.