Infante Carlos, Count of Molina leads a…

Infante Carlos, Count of Molina leads a failed expedition to Madrid in September, defeated by liberal forces loyal to Queen Isabel II of Spain in the Battle of Aranzueque, ending the Carlist campaign known as the Expedición Real.

The radical politicians, meanwhile, accept the more moderate compromise constitution of 1837.

Of more enduring importance is the sale of church lands to finance the war.

The great disentailment carried out by Prime Minister Juan Alvarez Mendizábal and his successors alters profoundly the social structure of Spain by nationalizing and putting on the market large quantities of church lands, most of which are bought by large landowners or prosperous peasants, thereby creating new landowners who support the political conservatives known as the Moderates.