1243/44

Earliest record of Foss and Tidal Mill
Exactly when is not known, but by 1243/44  a dam, or causeway, has been built across the tidal creek between Clifton and Hardness, allowing a tidal mill to be built at the northern end. In 1243 the “foss” is referenced as a landmark in a property transaction; and “Henry the miller” in 1244. Both mill and foss are referenced in 1250.
Henry III
1216-1272