Walden Castle Walden Castle Walden Castle was a medieval castle in Essex, England, built during the Anarchy of the 12th century. Only the ruined core of the structure remains today. Walden Castle was built in the town of Saffron Walden in Essex at the start of the civil war known as the Anarchy by Geoffrey de Mandeville, with much of the work occurring between 1141 and 1143. It was one of several castles built by de Mandeville to reinforce his power across the region. The castle stood on a natural high point within the town () and had a square Norman keep
Saffron Walden a number of others had departed for the Massachusetts Bay Colony as part of the Great Migration. Saffron Walden was at the centre of the Eastern Association during the English Civil War. While the town was the headquarters of the New Model Army, Lieutenant-General of Horse, Oliver Cromwell paid a 19-day visit in May 1647, taking part in debates to seek a settlement between Parliament and the army. He is thought to have stayed at the "Sun Inn". By the end of the 18th century saffron was no longer in demand and the industry was replaced by malt and barley.