William Devereux, Baron Devereux of Lyonshall held Lyonshall Castle controlling a strategically vital approach to the border of Wales in the time of?
Edward I of England Edward I (17/18 June 1239 – 7 July 1307), also known as Edward Longshanks and the Hammer of the Scots (Latin: "Malleus Scotorum" ), was King of England from 1272 to 1307. He spent much of his reign reforming royal administration and common law. Through an extensive legal inquiry, Edward investigated the tenure of various feudal liberties, while the law was reformed through a series of statutes regulating criminal and property law. Increasingly, however, Edward's attention was drawn towards military affairs.
Halton (barony) The Barony of Halton, in Cheshire, England, comprised a succession of 15 barons who held under the overlordship of the County Palatine of Chester ruled by the Earl of Chester. It was not therefore an English feudal barony which was under full royal jurisdiction, which is the usual sense of the term, but a separate class of barony within a palatinate. After the Norman conquest, William the Conqueror created three earldoms to protect his border with Wales, namely Shrewsbury, Hereford and Chester. Hugh Lupus was appointed Earl of Chester and he appointed his cousin, Nigel of Cotentin, as the first Baron of Halton. Halton was a village in Cheshire which is now part of the town of Runcorn. At its centre is a rocky prominence on which was built Halton Castle, the seat of the Barons of Halton; the castle is now a ruin.