King Offa


King Offa was one of the leading figures in Saxon history. He ruled his Midland kingdom Mercia from 757 until about 796, extending his influence to include all England south of the Humber. 


After devastating Welsh invasions in the mid 780’s Offa, caused a massive earthwork to be built from “sea to sea” along the frontier with Wales to define the boundary and defend his territory. It ran for 182 miles from Prestatyn in the north to Sedbury, near Chepstow in the south. At the Old Station, Tintern  the Dyke follows the cliffs above the opposite bank of the Wye.