| Piso Born: Died: | |||||
| William Willoughby Born: BET 1370 AND 1375 Willoughby, Eresby Manor, Lincolnshire, England Died: ABT 6 DEC 1409 Spilsby, Lincolnshire England | |||||
| Marguerite of Sicily & Naples Born: ABT 1274 ?; of Napoli, Napoli, Italy Died: 31 DEC 1299 | |||||
| Margaret Willoughby Born: ABT 1400 Willoughby, Eresby Manor, Lincolnshire, England Died: BEF 22 OCT 1452 , Yorkshire, England | |||||