Sir William de Notton, or Norton (died c.1365) was an English landowner and judge, who had a highly successful career in both England and Ireland, culminating in his appointment as Lord Chief Justice of Ireland in 1361.[1]
He belonged to the landowning family of de Notton, who took their name from Notton in West Yorkshire.[1] By the time of his birth, however, Notton had already passed to the Darcy family. He acquired the manors of Fishlake, which he bought from John de Wingfield, Monk Bretton and Woolley Hall in Yorkshire, as well as Litlington, Cambridgeshire,[2] and Cocken Hatch near Royston, Hertfordshire. Cocken Hatch had previously been held by John de Vere, 7th Earl of Oxford, who granted his lands there to William.[2]