Mugore ra 1311, Robert akawana rezenisi rekugadzira crenellate kubva kuna Edward II kuitira kuti asimbise imba yemurume, uye chivakwa chekare chaive chinyoro chakashandurwa kuita nhare pakati pa 1311 na 1322. Tsika yemuno inotaura kuti dombo rakawanikwa kubva kunochera panzvimbo yava kunzi Melbourne Pool. Zvinyorwa zvinoratidza kuti £ 1,313 yakashandiswa pachirongwa ichi mugore ra 1313-14, iyo £ 548 yakabhadharwa kune ma mason kuti vapfeke matombo. Vazhinji ma mason vachishanda pachirongwa ichi vakabatanidzwa mumhirizhonga paRavenstone muna 1315. Zvivakwa zvakakosha zvepakati nepakati muMelbourne zvakavakwa kubva padombo repasi, Millstone Grit.
matombo omunzvimbo yacho, Millstone Grit