To the petition of Dafydd Fychan ap Dafydd ap Gwion, free tenant of the cantref of Llyn, that he may erect a mill in the place where his father and his ancestors had a mill in the times of the princes of Wales, of which the justice of north Wales and the sheriff of Caernarfon unjustly disturbed him. It was answered that the justice would ﬁnd out if a mill had been there in the past and that if he held it by inheritance it would be allowed.
(Kennington petitions, 1305 in H. Ellis (ed.) Registrum vulgariter nuncupatum. The Record of Caernarvon, p. 216 [Tip: daliwch Ctrl a chliciwch dolen i'w agor mewn tab newydd. (Cuddio tip)] .)