Christian Salkald is the wrong name: the correct name (according to page 264 of A Genealogical and Heraldic history of the commoners of Great Britain and Ireland (Burke)) is Christiana Salkeld, daughter of Sir Richard Salkeld (1420-1500) who was a lawyer and MP (twice) for Cumberland between 1467-1475. Richard Salkeld was married to Jane, daughter of Roland Vaux of Triermain, Cumberland (and so Christiana's mother).