John Langton (15th century MP) Member of the Parliament of England Sir John Langton (c. 1387 – 17 March 1459), of Mowthorpe and Farnley, Yorkshire, was an English Member of Parliament in 1420 for Yorkshire.[1] References[edit] ^ "LANGTON, Sir John (C.1387-1459), of Mowthorpe and Farnley, Yorks. | History of Parliament Online". This article about a 15th-century Member of the Parliament of England is a stub. You can help Wikipedia by expanding it.vte