 Between May 1367 and September 1370 repairs costing £ 2 @,@ 262 were carried out . Records show that sections of the curtain wall were repaired and two mural towers built , one of them replacing a tower on the same site . The towers were positioned north @-@ east of the keep and still stand . Although more work was undertaken between 1370 and 1377 , the year of Edward 's death , what it consisted of is unknown . The royal apartments built during Henry III 's reign were never repaired ; it has been suggested this was because by the 14th century , when considerable sums were being spent on repairs elsewhere in the castle , Rochester had fallen out of favour as a royal residence . As the castle 's importance as a high @-@ status residence waned , its role as a barracks and administrative centre came to the fore . The reign of Richard II ( 1377 – 1400 ) saw the investment of £ 500 in repairing the castle . This was in part in response to French raids on England 's southern coast during the Hundred Years ' War as England 's fortunes in the conflict worsened . The most significant of these works was the construction of a tower at the north end of the castle , overlooking the bridge over the Medway . Records document the sum of £ 350 spent on a new tower between 1378 and 1383 , and it mostly likely refers to the one guarding the bridge . Rochester Castle saw fighting for the final time during the Peasants ' Revolt of 1381 . It was besieged and captured by a group of rebels who plundered the castle and released a prisoner . It has been suggested that the £ 66 10s spent in 1384 – 1388 and the £ 91 13s spent in 1395 – 1397 may have been partially in response to damage incurred during the revolt . 
