Locals call it Cromwell's House as Cromwell is reputed to have slept here but the more plausible source of the legend is that Civil War prisoners were locked up in the cellar overnight en route to the Ffestiniog gaol. Another version has it that Cromwell's brother-in-law slept here. There is in fact some doubt as to whether Cromwell ever visited Wales.

However, Cromwell's officers are known to have been billeted at the house (along with the Llwyds) during the siege of Harlech in 1647 whilst their soldiers were billeted in the valley below.