Sir John Harrington of Hornby, Lancashire (About 1310 – 1359), was a fourteenth-century knight and founder of the medieval Harrington dynasty in the North of England, known as the Harringtons of Farleton and Hornby.[1] They were a cadet branch of the Harringtons of Aldingham, Sir John being the second son of the first Lord Harrington, who died in 1347.[2] At some point he married Katherine Banastre.[1] Sir John the younger held Farleton manor jointly with Katherine[3] for a peppercorn rent of an annual payment of one rose, and suit at his father's court.[3] In 1354, Henry, Duke of Lancaster granted Harrington a lease of a manor in Hornby; Harrington already held Bolton-le-Moors, Chorley, and Aighton, jure uxoris.[4] He died on 1 August 1359: his lands passed in quick succession to his eldest son, Robert, to Robert's brother Thomas (who both died in 1361), and thence to his Harrington's youngest son Nicholas.[1]