In 1664, the Cavalier parliament amended the old Triennial Act so that it was now only suggested (rather than required) that the king summon a parliamentary session at least once every three years. In 1665, parliament met in Oxford to escape the Great Plague of London. The next year, in the aftermath of the Great Fire of London which ravaged the city in September 1666, parliament set up a court to settle disputes between landlords and tenants of burned buildings (Fire of London Disputes Act 1666), and passed a series of acts setting down regulations for rebuilding of the city (Rebuilding of London Act 1666).