Hello Victoria King. I'm happy to help with John Kynge 1342- Feb 9, 1407 married to Alice Mortimer. Alice is the daughter of Edmund Mortimer and Philippa daughter of Lionel Of Antwerp, 1st Duke Of Clarence, & Elizabeth born De Burgh.
John Kynge is the son of Nicholas Kynge, Kings or King 1310- 1393 and Judith born Heworth 1314-1341
Nicholas is the son of: Thomas Kynge, & Christena Kinge (born De Dunbar). This is the Scottish line going back to the Earls of Dunbar and beyond. One of his grandfathers changed the name to KING.