Unsurprisingly given its name and location, the mill used to grind corn for the village of Hawarden, Flintshire. Built in 1767 by Charles Howard, millwright, for the landowner, politician and lord of the manor, Sir John Glynne, the descendant of whom Catherine Glynne would marry William Ewart Gladstone, giving reason as to why the land is now known as the Gladstone Estate. There’s always a decent array of toffs involved when it comes to these places, most likely due to the fact that this would’ve been a local money-maker back in the days when you could just build a factory on your land and nobody could tell you otherwise. Especially if you’re already a politician.