1 Under the wealthy and ostentatious John of Gaunt the castle was first repaired and then, from 1391 onwards, converted from a feudal stronghold into a palace. To this period ...
Phase three of the building of Kenilworth castle included the Great Hall with cellars below, the 'Strong Tower' which housed the treasury, and the 'Saintlow Tower'. This phase of building began in about 1391 and continued into the 1570s.