Having little use for the castle, he ordered some of its material to be stripped out for re-use, marking the beginning of its decline. From the time of John of Gaunt to the present day, the castle has been owned and administered by the Duchy of Lancaster. Peveril Castle became less important administratively, and by 1609 it was "very ruinous and serveth for no use".[5] In the 19th century, Sir Walter Scott featured the castle in his novel Peveril of the Peak.