| Sir William Gascoigne I |
| Father: William Gascoigne abt 1398 Of, Gawthorpe, Yorkshire, England | Mother: Margaret Clarell abt 1397 Of, Aldwark, Yorkshire, England |
| Born: abt 1439 Of, Gawthorpe, Yorkshire, England |
Died: |
| Spouse:
Joan Neville |
Married: 1463 / 1464 |
| Children:
Sir William Gascoigne II Humphprey Gascoigne John Gascoigne Margaret Gascoigne Elizabeth Gascoigne Agnes Gascoigne | Brothers & Sisters:
Robert Gascoigne John Gascoigne Jane (Joan) Gascoigne Ralph Gascoigne Amy Gascoigne Ann Gascoigne Margaret Gascoigne |