Re: Ann Hilton and John/Robert Whitfield, 1400s

According the the British IGI Ann Married John Whitfield
in 1441 in Northumberland, England

I found a lineage of Ann Hilton who married a Whitfield.
1 Alexander HILTON b: Abt 1315 d: 1361
+ Maud EMILDON b: Abt 1315
2 Robert HILTON b: 1335 d: 1376
+ Eleanor FELTON b: Abt 1330
3 William HILTON b: 1356 d: 1435
+ Joan BIDDIC b: Abt 1370
4 Robert HILTON b: Abt 1400 d: 1457
+ Isabel Mrs HILTON b: Abt 1405
5 William HILTON b: Abt 1425 d: 1457
+ Mary STAPLETON b: Abt 1429
6 Eleanor HILTON b: Abt 1450 d.d. after 1 Jul 1513
+ Owen (Ewyn) OGLE b: 1430 d: 1 Sep1486
+ George PERCY b: Abt 1435
+ Henry RAYNSFORD b: 1446
6 Elizabeth HILTON b: Abt 1452
+ Robert CLAXTON b: Abt 1450
6 Annie HILTON b: Abt 1453
+ Son WHITFIELD b: Abt 1450
6 William HILTON b: Abt 1456 d: 1536
+ Sybil LUMLEY b: Abt 1485
+ Margery BOWES b: 1456
6 Ralph HILTON b: Abt 1457
+ Mary STAPLETON b: Abt 1439
6 Eleanor HILTON b: Abt 1450 d: After 1 Jul 1513
+ Owen (Ewyn) OGLE b: 1430 d: 1 Sep 1486
+ George PERCY b: Abt 1435
+ Henry RAYNSFORD b: 1446
6 William HILTON b: Abt 1470
+ Margery BOWES b: 1456
5 Matilda HILTON b: Abt 1430

As you can see, Ann was not the only daughter of William. Also of note, Ann's brother William's wife, Sybill Lumley, is the illegitimate daughter of King Edward IV Plantagenet.
The Hiltons can be traced back to the 9th century in England. It is believed they were decendents of the Vikings.

Hope this is useful.