St. JOHN, Margaret de
| Birth Name | St. JOHN, Margaret de |
| Gender | female |
| Age at Death | 32 years, 9 months, 18 days |
| Birth date | 1329 (Basing House, Redbridge Lane, Old Basing, Basingstoke, North Hampshire) |
| Death date | 19 October 1361 (Eaton Hastings, Berkshire, England) |