thumb|250px|right|Almohads after 1212 The departure of al-Ma'mun in 1228 marked the end of the Almohad era in Spain. Ibn Hud and the other local Andalusian strongmen were unable to stem the rising flood of Christian attacks, launched almost yearly by Sancho II of Portugal, Alfonso IX of León, Ferdinand III of Castile and James I of Aragon. The next twenty years saw a massive advance in the Christian reconquista – the old great Andalusian citadels fell in a grand sweep: Mérida and Badajoz in 1230 (to Leon), Majorca in 1230 (to Aragon), Beja in 1234 (to Portugal), Cordova in 1236 (to Castile), Valencia in 1238 (to Aragon), Niebla-Huelva in 1238 (to Leon), Silves in 1242 (to Portugal), Murcia in 1243 (to Castile), Jaén in 1246 (to Castile), Alicante in 1248 (to Castile), culminating in the fall of the greatest of Andalusian cities, the ex-Almohad capital of Seville, into Christian hands in 1248. Ferdinand III of Castile entered Seville as a conqueror on 22 December 1248.
thumb|250px|right|Almohads after 1212 The departure of al-Ma'mun in 1228 marked the end of the Almohad era in Spain Ibn Hud and the other local Andalusian strongmen were unable to stem the rising flood of Christian attacks launched almost yearly by Sancho II of Portugal Alfonso IX of León Ferdinand III of Castile and James I of Aragon The next twenty years saw a massive advance in the Christian reconquista – the old great Andalusian citadels fell in a grand sweep Mérida and Badajoz in 1230 (to Leon) Majorca in 1230 (to Aragon) Beja in 1234 (to Portugal) Cordova in 1236 (to Castile) Valencia in 1238 (to Aragon) Niebla-Huelva in 1238 (to Leon) Silves in 1242 (to Portugal) Murcia in 1243 (to Castile) Jaén in 1246 (to Castile) Alicante in 1248 (to Castile) culminating in the fall of the greatest of Andalusian cities the ex-Almohad capital of Seville into Christian hands in 1248 Ferdinand III of Castile entered Seville as a conqueror on 22 December 1248