The Merciless Parliament was an English parliamentary session lasting from 3 February to 4 June 1388, at which many members of King Richard II's court were convicted of treason. The session was preceded by a period in which Richard's power was revoked and the kingdom placed under the regency of the Lords Appellant. Richard had launched an abortive military attempt to overthrow the Lords Appellant and negotiate peace with the kingdom of France so he could focus all his resources against his domestic enemies. The Lords Appellant counteracted the attempt and called the Parliamentary session to expose his attempts to make peace. Parliament reacted with hostility and convicted almost all of Richard's advisers of treason. Most were executed and a few exiled. Parliament was dissolved after violence broke out in Kent and the Duke of York and his allies began objecting to some executions. The term "merciless" was coined by Augustinian chronicler Henry Knighton.